Bump microsoft/setup-msbuild from 1.0.1 to 1.3.1

Bumps [microsoft/setup-msbuild](https://github.com/microsoft/setup-msbuild) from 1.0.1 to 1.3.1.
- [Release notes](https://github.com/microsoft/setup-msbuild/releases)
- [Changelog](https://github.com/microsoft/setup-msbuild/blob/main/building-release.md)
- [Commits](https://github.com/microsoft/setup-msbuild/compare/v1.0.1...v1.3.1)

---
updated-dependencies:
- dependency-name: microsoft/setup-msbuild
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.editorconfig

@@ -0,0 +1,129 @@
+[*.{cs,vb}]
+
+# IDE0003: Remove qualification
+dotnet_diagnostic.IDE0003.severity = error
+dotnet_style_operator_placement_when_wrapping = beginning_of_line
+tab_width = 4
+indent_size = 4
+end_of_line = crlf
+dotnet_style_coalesce_expression = true:suggestion
+dotnet_style_null_propagation = true:suggestion
+dotnet_style_prefer_is_null_check_over_reference_equality_method = true:error
+dotnet_style_prefer_auto_properties = true:error
+dotnet_style_object_initializer = true:suggestion
+dotnet_style_collection_initializer = true:suggestion
+dotnet_style_prefer_simplified_boolean_expressions = true:suggestion
+dotnet_style_prefer_conditional_expression_over_assignment = true:silent
+dotnet_style_prefer_conditional_expression_over_return = true:silent
+dotnet_style_explicit_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_tuple_names = true:suggestion
+dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion
+dotnet_style_prefer_compound_assignment = true:suggestion
+dotnet_style_prefer_simplified_interpolation = true:suggestion
+dotnet_style_namespace_match_folder = true:suggestion
+
+[*.cs]
+csharp_indent_labels = one_less_than_current
+csharp_space_around_binary_operators = before_and_after
+csharp_using_directive_placement = outside_namespace:error
+csharp_prefer_simple_using_statement = true:error
+csharp_prefer_braces = true:silent
+csharp_style_namespace_declarations = file_scoped:error
+csharp_style_prefer_method_group_conversion = true:silent
+csharp_style_expression_bodied_methods = false:silent
+csharp_style_expression_bodied_constructors = false:silent
+csharp_style_expression_bodied_operators = false:silent
+csharp_style_expression_bodied_properties = true:silent
+csharp_style_expression_bodied_indexers = true:silent
+csharp_style_expression_bodied_accessors = true:silent
+csharp_style_expression_bodied_lambdas = true:silent
+csharp_style_expression_bodied_local_functions = false:silent
+csharp_style_throw_expression = true:suggestion
+csharp_style_prefer_null_check_over_type_check = true:suggestion
+csharp_prefer_simple_default_expression = true:suggestion
+csharp_style_prefer_local_over_anonymous_function = true:error
+csharp_style_prefer_index_operator = true:suggestion
+csharp_style_prefer_range_operator = true:suggestion
+csharp_style_implicit_object_creation_when_type_is_apparent = true:suggestion
+csharp_style_prefer_tuple_swap = true:suggestion
+csharp_style_inlined_variable_declaration = true:suggestion
+csharp_style_deconstructed_variable_declaration = true:error
+csharp_style_unused_value_assignment_preference = discard_variable:error
+csharp_style_unused_value_expression_statement_preference = discard_variable:silent
+csharp_prefer_static_local_function = true:suggestion
+csharp_style_allow_embedded_statements_on_same_line_experimental = true:silent
+csharp_style_allow_blank_lines_between_consecutive_braces_experimental = false:suggestion
+csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = true:silent
+csharp_style_conditional_delegate_call = true:suggestion
+csharp_style_prefer_parameter_null_checking = true:suggestion
+csharp_style_prefer_switch_expression = true:suggestion
+csharp_style_prefer_pattern_matching = true:silent
+csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
+csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
+csharp_style_prefer_not_pattern = true:suggestion
+csharp_style_prefer_extended_property_pattern = true:suggestion
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+[*.{cs,vb}]
+#### Naming styles ####
+
+# Naming rules
+
+dotnet_naming_rule.interface_should_be_begins_with_i.severity = suggestion
+dotnet_naming_rule.interface_should_be_begins_with_i.symbols = interface
+dotnet_naming_rule.interface_should_be_begins_with_i.style = begins_with_i
+
+dotnet_naming_rule.types_should_be_pascal_case.severity = suggestion
+dotnet_naming_rule.types_should_be_pascal_case.symbols = types
+dotnet_naming_rule.types_should_be_pascal_case.style = pascal_case
+
+dotnet_naming_rule.non_field_members_should_be_pascal_case.severity = suggestion
+dotnet_naming_rule.non_field_members_should_be_pascal_case.symbols = non_field_members
+dotnet_naming_rule.non_field_members_should_be_pascal_case.style = pascal_case
+
+# Symbol specifications
+
+dotnet_naming_symbols.interface.applicable_kinds = interface
+dotnet_naming_symbols.interface.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.interface.required_modifiers = 
+
+dotnet_naming_symbols.types.applicable_kinds = class, struct, interface, enum
+dotnet_naming_symbols.types.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.types.required_modifiers = 
+
+dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method
+dotnet_naming_symbols.non_field_members.applicable_accessibilities = public, internal, private, protected, protected_internal, private_protected
+dotnet_naming_symbols.non_field_members.required_modifiers = 
+
+# Naming styles
+
+dotnet_naming_style.begins_with_i.required_prefix = I
+dotnet_naming_style.begins_with_i.required_suffix = 
+dotnet_naming_style.begins_with_i.word_separator = 
+dotnet_naming_style.begins_with_i.capitalization = pascal_case
+
+dotnet_naming_style.pascal_case.required_prefix = 
+dotnet_naming_style.pascal_case.required_suffix = 
+dotnet_naming_style.pascal_case.word_separator = 
+dotnet_naming_style.pascal_case.capitalization = pascal_case
+
+dotnet_naming_style.pascal_case.required_prefix = 
+dotnet_naming_style.pascal_case.required_suffix = 
+dotnet_naming_style.pascal_case.word_separator = 
+dotnet_naming_style.pascal_case.capitalization = pascal_case
+dotnet_style_readonly_field = true:suggestion
+dotnet_style_predefined_type_for_locals_parameters_members = true:silent
+dotnet_style_predefined_type_for_member_access = true:silent
+dotnet_style_require_accessibility_modifiers = for_non_interface_members:silent
+dotnet_style_allow_multiple_blank_lines_experimental = true:silent
+dotnet_style_allow_statement_immediately_after_block_experimental = false:suggestion
+dotnet_code_quality_unused_parameters = all:error
+dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:suggestion
+dotnet_style_parentheses_in_other_operators = never_if_unnecessary:suggestion
+dotnet_style_qualification_for_field = true:error
+dotnet_style_qualification_for_property = true:error
+dotnet_style_qualification_for_method = true:error
+dotnet_style_qualification_for_event = true:error

.github/CODEOWNERS

@@ -0,0 +1 @@
+*	amacocian@yahoo.com

.github/dependabot.yml

@@ -0,0 +1,16 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "nuget"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/cd.yaml

@@ -0,0 +1,71 @@
+name:  SystemExtensions CD Pipeline
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+
+  build:
+    environment: Default
+    strategy:
+      matrix:
+        targetplatform: [x64]
+
+    runs-on: windows-latest
+
+    env:
+      Configuration: Release
+      Solution_Path: SystemExtensions.sln
+      Test_Project_Path: SystemExtensions.Tests\SystemExtensions.NetStandard.Tests.csproj
+      DI_Test_Project_Path: SystemExtensions.DependencyInjection.Tests\SystemExtensions.NetStandard.DependencyInjection.Tests.csproj
+      Source_Project_Path: SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
+      Core_Project_Path: SystemExtensions.NetCore\SystemExtensions.NetCore.csproj
+      Actions_Allow_Unsecure_Commands: true
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+
+    - name: Install .NET Core
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: '6.0.x'
+
+    - name: Setup MSBuild.exe
+      uses: microsoft/setup-msbuild@v1.3.1
+
+    - name: Restore project
+      run: msbuild $env:Solution_Path /t:Restore /p:Configuration=$env:Configuration /p:RuntimeIdentifier=$env:RuntimeIdentifier
+      env:
+        RuntimeIdentifier: win-${{ matrix.targetplatform }}
+
+    - name: Build SystemExtensions.NetStandard project
+      run: dotnet build SystemExtensions.NetStandard -c $env:Configuration
+
+    - name: Build SystemExtensions.NetCore project
+      run: dotnet build SystemExtensions.NetCore -c $env:Configuration
+
+    - name: Build SystemExtensions.NetStandard.DependencyInjection project
+      run: dotnet build SystemExtensions.NetStandard.DependencyInjection -c $env:Configuration
+
+    - name: Build SystemExtensions.NetStandard.Security project
+      run: dotnet build SystemExtensions.NetStandard.Security -c $env:Configuration
+
+    - name: Package SystemExtensions.NetStandard
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
+
+    - name: Package SystemExtensions.NetCore
+      run: dotnet pack -c Release -o . SystemExtensions.NetCore\SystemExtensions.NetCore.csproj
+
+    - name: Package SystemExtensions.NetStandard.DependencyInjection
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard.DependencyInjection\SystemExtensions.NetStandard.DependencyInjection.csproj
+
+    - name: Package SystemExtensions.NetStandard.Security
+      run: dotnet pack -c Release -o . SystemExtensions.NetStandard.Security\SystemExtensions.NetStandard.Security.csproj
+
+    - name: Publish
+      run: dotnet nuget push *.nupkg --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json --skip-duplicate

.github/workflows/ci.yaml

@@ -0,0 +1,56 @@
+name:  SystemExtensions CI Pipeline
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+
+  build:
+
+    strategy:
+      matrix:
+        targetplatform: [x64]
+
+    runs-on: windows-latest
+
+    env:
+      Solution_Path: SystemExtensions.sln
+      Test_Project_Path: SystemExtensions.Tests\SystemExtensions.NetStandard.Tests.csproj
+      DI_Test_Project_Path: SystemExtensions.DependencyInjection.Tests\SystemExtensions.NetStandard.DependencyInjection.Tests.csproj
+      Sec_Test_Project_Path: SystemExtensions.NetStandard.Security.Tests\SystemExtensions.NetStandard.Security.Tests.csproj
+      Source_Project_Path: SystemExtensions.NetStandard\SystemExtensions.NetStandard.csproj
+      Actions_Allow_Unsecure_Commands: true
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+
+    - name: Install .NET Core
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: '6.0.x'
+
+    - name: Setup MSBuild.exe
+      uses: microsoft/setup-msbuild@v1.3.1
+
+    - name: Execute Unit Tests
+      run: dotnet test $env:Test_Project_Path
+
+    - name: Execute DI Unit Tests
+      run: dotnet test $env:DI_Test_Project_Path
+
+    - name: Execute Security Unit Tests
+      run: dotnet test $env:Sec_Test_Project_Path
+
+    - name: Restore Project
+      run: msbuild $env:Solution_Path /t:Restore /p:Configuration=$env:Configuration /p:RuntimeIdentifier=$env:RuntimeIdentifier
+      env:
+        Configuration: Debug
+        RuntimeIdentifier: win-${{ matrix.targetplatform }}

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Macocian Alexandru Victor
+Copyright (c) 2021 Macocian Alexandru Victor
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

SystemExtensions.DependencyInjection.Tests/Configuration/DefaultOptionsManagerTests.cs

@@ -0,0 +1,25 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class DefaultOptionsManagerTests
+{
+    private readonly DefaultOptionsManager optionsManager = new();
+
+    [TestMethod]
+    public void GetOptions_ReturnsDefault()
+    {
+        var options = this.optionsManager.GetOptions<string>();
+
+        options.Should().BeNull();
+    }
+
+    [TestMethod]
+    public void UpdateOptions_Succeeds()
+    {
+        this.optionsManager.UpdateOptions(string.Empty);
+    }
+}

SystemExtensions.DependencyInjection.Tests/Configuration/DummyOptions.cs

@@ -0,0 +1,5 @@
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+public sealed class DummyOptions
+{
+}

SystemExtensions.DependencyInjection.Tests/Configuration/LiveOptionsResolverTests.cs

@@ -0,0 +1,68 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class LiveOptionsResolverTests
+{
+    private readonly LiveOptionsResolver liveOptionsResolver = new();
+    private readonly Mock<Slim.IServiceProvider> serviceProviderMock = new();
+    private readonly Mock<IOptionsManager> optionsManagerMock = new();
+
+    [TestMethod]
+    public void CanResolve_ILiveOptions_ReturnsTrue()
+    {
+        var type = typeof(ILiveOptions<string>);
+
+        var canResolve = this.liveOptionsResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_AnythingElse_ReturnsFalse()
+    {
+        var types = new Type[] { typeof(object), typeof(string), typeof(LiveOptionsResolverTests), typeof(int) };
+
+        foreach (var type in types)
+        {
+            var canResolve = this.liveOptionsResolver.CanResolve(type);
+
+            canResolve.Should().BeFalse();
+        }
+    }
+
+    [TestMethod]
+    public void Resolve_ILiveOptions_ReturnsILiveOptions()
+    {
+        this.SetupServiceProvider();
+
+        var liveOptions = this.liveOptionsResolver.Resolve(this.serviceProviderMock.Object, typeof(ILiveOptions<string>));
+
+        liveOptions.Should().BeAssignableTo<ILiveOptions<string>>();
+    }
+
+    [TestMethod]
+    public void Resolve_AnythingElse_Throws()
+    {
+        this.SetupServiceProvider();
+
+        Action action = new(() =>
+        {
+            this.liveOptionsResolver.Resolve(this.serviceProviderMock.Object, typeof(string));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    private void SetupServiceProvider()
+    {
+        this.serviceProviderMock
+            .Setup(u => u.GetService<IOptionsManager>())
+            .Returns(this.optionsManagerMock.Object);
+    }
+}

SystemExtensions.DependencyInjection.Tests/Configuration/LiveUpdateableOptionsResolverTests.cs

@@ -0,0 +1,68 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class LiveUpdateableOptionsResolverTests
+{
+    private readonly LiveUpdateableOptionsResolver liveUpdateableOptionsResolver = new();
+    private readonly Mock<Slim.IServiceProvider> serviceProviderMock = new();
+    private readonly Mock<IOptionsManager> optionsManagerMock = new();
+
+    [TestMethod]
+    public void CanResolve_ILiveUpdateableOptions_ReturnsTrue()
+    {
+        var type = typeof(ILiveUpdateableOptions<string>);
+
+        var canResolve = this.liveUpdateableOptionsResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_AnythingElse_ReturnsFalse()
+    {
+        var types = new Type[] { typeof(object), typeof(string), typeof(LiveOptionsResolverTests), typeof(int) };
+
+        foreach (var type in types)
+        {
+            var canResolve = this.liveUpdateableOptionsResolver.CanResolve(type);
+
+            canResolve.Should().BeFalse();
+        }
+    }
+
+    [TestMethod]
+    public void Resolve_ILiveUpdateableOptions_ReturnsILiveUpdateableOptions()
+    {
+        this.SetupServiceProvider();
+
+        var liveOptions = this.liveUpdateableOptionsResolver.Resolve(this.serviceProviderMock.Object, typeof(ILiveUpdateableOptions<string>));
+
+        liveOptions.Should().BeAssignableTo<ILiveUpdateableOptions<string>>();
+    }
+
+    [TestMethod]
+    public void Resolve_AnythingElse_Throws()
+    {
+        this.SetupServiceProvider();
+
+        Action action = new(() =>
+        {
+            this.liveUpdateableOptionsResolver.Resolve(this.serviceProviderMock.Object, typeof(string));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    private void SetupServiceProvider()
+    {
+        this.serviceProviderMock
+            .Setup(u => u.GetService<IOptionsManager>())
+            .Returns(this.optionsManagerMock.Object);
+    }
+}

SystemExtensions.DependencyInjection.Tests/Configuration/LiveUpdateableOptionsWrapperTests.cs

@@ -0,0 +1,43 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class LiveUpdateableOptionsWrapperTests
+{
+    private LiveUpdateableOptionsWrapper<string> optionsWrapper;
+    private readonly Mock<IOptionsManager> optionsManagerMock = new();
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.optionsWrapper = new LiveUpdateableOptionsWrapper<string>(this.optionsManagerMock.Object);
+    }
+
+    [TestMethod]
+    public void GetValue_ReturnsValue()
+    {
+        this.optionsManagerMock
+            .Setup(u => u.GetOptions<string>())
+            .Returns("hello");
+
+        var value = this.optionsWrapper.Value;
+
+        value.Should().Be("hello");
+    }
+
+    [TestMethod]
+    public void UpdateOption_CallsOptionsManager()
+    {
+        this.optionsManagerMock
+            .Setup(u => u.UpdateOptions<string>(It.IsAny<string>()))
+            .Verifiable();
+
+        this.optionsWrapper.UpdateOption();
+
+        this.optionsManagerMock.Verify();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Configuration/OptionsResolverTests.cs

@@ -0,0 +1,70 @@
+using FluentAssertions;
+using Microsoft.Extensions.Options;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class OptionsResolverTests
+{
+    private readonly OptionsResolver optionsResolver = new();
+    private readonly Mock<Slim.IServiceProvider> serviceProviderMock = new();
+
+    public Mock<IOptionsManager> OptionsManagerMock { get; } = new();
+
+    [TestMethod]
+    public void CanResolve_ILiveOptions_ReturnsTrue()
+    {
+        var type = typeof(IOptions<string>);
+
+        var canResolve = this.optionsResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_AnythingElse_ReturnsFalse()
+    {
+        var types = new Type[] { typeof(object), typeof(string), typeof(OptionsResolverTests), typeof(int) };
+
+        foreach (var type in types)
+        {
+            var canResolve = this.optionsResolver.CanResolve(type);
+
+            canResolve.Should().BeFalse();
+        }
+    }
+
+    [TestMethod]
+    public void Resolve_IOptions_ReturnsIOptions()
+    {
+        this.SetupServiceProvider();
+
+        var liveOptions = this.optionsResolver.Resolve(this.serviceProviderMock.Object, typeof(IOptions<string>));
+
+        liveOptions.Should().BeAssignableTo<IOptions<string>>();
+    }
+
+    [TestMethod]
+    public void Resolve_AnythingElse_Throws()
+    {
+        this.SetupServiceProvider();
+
+        Action action = new(() =>
+        {
+            this.optionsResolver.Resolve(this.serviceProviderMock.Object, typeof(string));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    private void SetupServiceProvider()
+    {
+        this.serviceProviderMock
+            .Setup(u => u.GetService<IOptionsManager>())
+            .Returns(this.OptionsManagerMock.Object);
+    }
+}

SystemExtensions.DependencyInjection.Tests/Configuration/UpdateableOptionsResolverTests.cs

@@ -0,0 +1,68 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class UpdateableOptionsResolverTests
+{
+    private readonly UpdateableOptionsResolver updateableOptionsResolver = new();
+    private readonly Mock<Slim.IServiceProvider> serviceProviderMock = new();
+    private readonly Mock<IOptionsManager> optionsManagerMock = new();
+
+    [TestMethod]
+    public void CanResolve_ILiveOptions_ReturnsTrue()
+    {
+        var type = typeof(IUpdateableOptions<string>);
+
+        var canResolve = this.updateableOptionsResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_AnythingElse_ReturnsFalse()
+    {
+        var types = new Type[] { typeof(object), typeof(string), typeof(UpdateableOptionsResolverTests), typeof(int) };
+
+        foreach (var type in types)
+        {
+            var canResolve = this.updateableOptionsResolver.CanResolve(type);
+
+            canResolve.Should().BeFalse();
+        }
+    }
+
+    [TestMethod]
+    public void Resolve_IUpdateableOptions_ReturnsIUpdateableOptions()
+    {
+        this.SetupServiceProvider();
+
+        var liveOptions = this.updateableOptionsResolver.Resolve(this.serviceProviderMock.Object, typeof(IUpdateableOptions<string>));
+
+        liveOptions.Should().BeAssignableTo<IUpdateableOptions<string>>();
+    }
+
+    [TestMethod]
+    public void Resolve_AnythingElse_Throws()
+    {
+        this.SetupServiceProvider();
+
+        Action action = new(() =>
+        {
+            this.updateableOptionsResolver.Resolve(this.serviceProviderMock.Object, typeof(string));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    private void SetupServiceProvider()
+    {
+        this.serviceProviderMock
+            .Setup(u => u.GetService<IOptionsManager>())
+            .Returns(this.optionsManagerMock.Object);
+    }
+}

SystemExtensions.DependencyInjection.Tests/Configuration/UpdateableOptionsWrapperTests.cs

@@ -0,0 +1,47 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Configuration;
+using System.Extensions.Configuration;
+
+namespace SystemExtensions.DependencyInjection.Tests.Configuration;
+
+[TestClass]
+public class UpdateableOptionsWrapperTests
+{
+    private const string Value = "hello";
+
+    private UpdateableOptionsWrapper<string> optionsWrapper;
+    private readonly Mock<IOptionsManager> optionsManagerMock = new();
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.optionsWrapper = new UpdateableOptionsWrapper<string>(this.optionsManagerMock.Object, Value);
+    }
+
+    [TestMethod]
+    public void GetValue_ReturnsValue()
+    {
+        this.optionsManagerMock
+            .Setup(u => u.GetOptions<string>())
+            .Throws<Exception>();
+
+        var value = this.optionsWrapper.Value;
+
+        value.Should().Be(Value);
+    }
+
+    [TestMethod]
+    public void UpdateOption_CallsOptionsManager()
+    {
+        this.optionsManagerMock
+            .Setup(u => u.UpdateOptions<string>(It.IsAny<string>()))
+            .Verifiable();
+
+        this.optionsWrapper.UpdateOption();
+
+        this.optionsManagerMock.Verify();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Http/HttpClientBuilderTests.cs

@@ -0,0 +1,198 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using Slim;
+using System;
+using System.DependencyInjection.Http;
+using System.Linq;
+using System.Net.Http;
+using System.Threading.Tasks;
+using SystemExtensions.NetStandard.DependencyInjection.Tests.Http.Models;
+
+namespace SystemExtensions.NetStandard.DependencyInjection.Tests.Http;
+
+[TestClass]
+public sealed class HttpClientBuilderTests
+{
+    private const string SomeHeader = "SomeHeader";
+    private const string SomeValue = "SomeValue";
+
+    private readonly HttpClientBuilder<object> httpClientBuilder;
+    private readonly Mock<IServiceProducer> serviceProducerMock = new();
+    private readonly Uri baseAddress = new("http://contoso.co");
+
+    public HttpClientBuilderTests()
+    {
+        this.httpClientBuilder = new HttpClientBuilder<object>(this.serviceProducerMock.Object);
+    }
+
+    [TestMethod]
+    public void Constructor_NullServiceProducer_Throws()
+    {
+        var action = () => new HttpClientBuilder<object>(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithMessageHandler_NullHandler_Throws()
+    {
+        var action = () => this.httpClientBuilder.WithMessageHandler(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithBaseAddress_NullBaseAddress_Throws()
+    {
+        var action = () => this.httpClientBuilder.WithBaseAddress(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void WithDefaultRequestHeadersSetup_NullSetup_Throws()
+    {
+        var action = () => this.httpClientBuilder.WithDefaultRequestHeadersSetup(null);
+
+        action.Should().Throw<ArgumentNullException>();
+    }
+
+    [TestMethod]
+    public void Build_ReturnsServiceProducer()
+    {
+        var producer = this.httpClientBuilder.Build();
+
+        producer.Should().Be(this.serviceProducerMock.Object);
+    }
+
+    [TestMethod]
+    public void Build_RegistersWithServiceProducer()
+    {
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false));
+
+        this.httpClientBuilder.Build();
+
+        this.serviceProducerMock.Verify();
+    }
+
+    [TestMethod]
+    public void Build_CreatesExpectedClient()
+    {
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false))
+            .Callback<Func<Slim.IServiceProvider, IHttpClient<object>>, bool>((factory, _) =>
+            {
+                var client = factory(new Mock<Slim.IServiceProvider>().Object);
+                client.BaseAddress.Should().BeNull();
+                client.DefaultRequestHeaders.Should().BeEmpty();
+                client.MaxResponseContentBufferSize.Should().Be(2147483647L);
+                client.Timeout.Should().Be(TimeSpan.FromSeconds(100));
+            });
+
+        this.httpClientBuilder.Build();
+    }
+
+    [TestMethod]
+    public void Build_WithBaseAddress_ReturnsClientWithBaseAddress()
+    {
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false))
+            .Callback<Func<Slim.IServiceProvider, IHttpClient<object>>, bool>((factory, _) =>
+            {
+                var client = factory(new Mock<Slim.IServiceProvider>().Object);
+                client.BaseAddress.Should().Be(this.baseAddress);
+            });
+
+        this.httpClientBuilder.WithBaseAddress(this.baseAddress)
+            .Build();
+    }
+
+    [TestMethod]
+    public void Build_WithDefaultRequestHeaders_CallsFactory()
+    {
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false))
+            .Callback<Func<Slim.IServiceProvider, IHttpClient<object>>, bool>((factory, _) =>
+            {
+                var client = factory(new Mock<Slim.IServiceProvider>().Object);
+                client.DefaultRequestHeaders.TryGetValues(SomeHeader, out var values);
+
+                values.Should().HaveCount(1);
+                values.FirstOrDefault().Should().Be(SomeValue);
+            });
+
+        this.httpClientBuilder.WithDefaultRequestHeadersSetup((headers) =>
+        {
+            headers.TryAddWithoutValidation(SomeHeader, SomeValue);
+        }).Build();
+    }
+
+    [TestMethod]
+    public void Build_WithMaxResponseBufferSize_ReturnsClientWithMaxResponseBufferSize()
+    {
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false))
+            .Callback<Func<Slim.IServiceProvider, IHttpClient<object>>, bool>((factory, _) =>
+            {
+                var client = factory(new Mock<Slim.IServiceProvider>().Object);
+                client.MaxResponseContentBufferSize.Should().Be(100);
+            });
+
+        this.httpClientBuilder.WithMaxResponseBufferSize(100)
+            .Build();
+    }
+
+    [TestMethod]
+    public void Build_WithTimeout_ReturnsClientWithTimeout()
+    {
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false))
+            .Callback<Func<Slim.IServiceProvider, IHttpClient<object>>, bool>((factory, _) =>
+            {
+                var client = factory(new Mock<Slim.IServiceProvider>().Object);
+                client.Timeout.Should().Be(TimeSpan.FromSeconds(5));
+            });
+
+        this.httpClientBuilder.WithTimeout(TimeSpan.FromSeconds(5))
+            .Build();
+    }
+
+    [TestMethod]
+    public void Build_WithMessageHandler_CallsMessageHandler()
+    {
+        var handlerMock = new HttpMessageHandlerMock();
+        this.serviceProducerMock.Setup(u => u.RegisterScoped(It.IsAny<Func<Slim.IServiceProvider, IHttpClient<object>>>(), false))
+            .Callback<Func<Slim.IServiceProvider, IHttpClient<object>>, bool>(async (factory, _) =>
+            {
+                var client = factory(new Mock<Slim.IServiceProvider>().Object);
+                await client.GetAsync(this.baseAddress);
+                handlerMock.Called.Should().BeTrue();
+            });
+
+        this.httpClientBuilder.WithMessageHandler(sp => handlerMock)
+            .Build();
+    }
+
+    [TestMethod]
+    public async Task HttpClientBuilder_RegistersClientCorrectly_IServiceProviderReturnsExpected()
+    {
+        var container = new ServiceManager();
+        var messageHandler = new HttpMessageHandlerMock();
+        new HttpClientBuilder<object>(container)
+            .WithBaseAddress(this.baseAddress)
+            .WithDefaultRequestHeadersSetup(header => header.TryAddWithoutValidation(SomeHeader, SomeValue))
+            .WithMaxResponseBufferSize(5)
+            .WithMessageHandler(sp => messageHandler)
+            .WithTimeout(TimeSpan.FromSeconds(5))
+            .Build();
+
+        var client = container.GetService<IHttpClient<object>>();
+        await client.GetAsync("");
+
+        client.Should().NotBeNull();
+        client.BaseAddress.Should().Be(this.baseAddress);
+        client.DefaultRequestHeaders.Should().HaveCount(1);
+        client.DefaultRequestHeaders.First().Key.Should().Be(SomeHeader);
+        client.DefaultRequestHeaders.First().Value.Should().HaveCount(1);
+        client.DefaultRequestHeaders.First().Value.First().Should().Be(SomeValue);
+        client.MaxResponseContentBufferSize.Should().Be(5);
+        client.Timeout.Should().Be(TimeSpan.FromSeconds(5));
+        messageHandler.Called.Should().BeTrue();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Http/HttpClientResolverTests.cs

@@ -0,0 +1,68 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Http;
+using System.Net.Http;
+
+namespace SystemExtensions.DependencyInjection.Tests.Http;
+
+[TestClass]
+public class HttpClientResolverTests
+{
+    private readonly HttpClientResolver httpClientResolver = new();
+    private readonly Mock<Slim.IServiceProvider> serviceProviderMock = new();
+
+    [TestMethod]
+    public void CanResolve_IHttpClient_ReturnsTrue()
+    {
+        var type = typeof(IHttpClient<>);
+
+        var canResolve = this.httpClientResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_AnythingElse_ReturnsFalse()
+    {
+        var types = new Type[] { typeof(HttpClient), typeof(object), typeof(string), typeof(HttpClientResolverTests), typeof(int) };
+
+        foreach (var type in types)
+        {
+            var canResolve = this.httpClientResolver.CanResolve(type);
+
+            canResolve.Should().BeFalse();
+        }
+    }
+
+    [TestMethod]
+    public void Resolve_TypedClient_ReturnsIHttpClient()
+    {
+        var client = this.httpClientResolver.Resolve(this.serviceProviderMock.Object, typeof(IHttpClient<string>));
+
+        client.Should().BeAssignableTo<IHttpClient<string>>();
+    }
+
+    [TestMethod]
+    public void Resolve_NonGenericType_Throws()
+    {
+        Action action = new(() =>
+        {
+            this.httpClientResolver.Resolve(this.serviceProviderMock.Object, typeof(IHttpClient<>));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    [TestMethod]
+    public void Resolve_RandomType_Throws()
+    {
+        Action action = new(() =>
+        {
+            this.httpClientResolver.Resolve(this.serviceProviderMock.Object, typeof(string));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Http/Models/HttpMessageHandlerMock.cs

@@ -0,0 +1,16 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.DependencyInjection.Tests.Http.Models;
+public sealed class HttpMessageHandlerMock : HttpMessageHandler
+{
+    public bool Called { get; private set; }
+
+    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        this.Called = true;
+
+        return Task.FromResult(new HttpResponseMessage());
+    }
+}

SystemExtensions.DependencyInjection.Tests/Logging/CVLoggerProviderTests.cs

@@ -0,0 +1,42 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System.Logging;
+
+namespace SystemExtensions.DependencyInjection.Tests.Logging;
+
+[TestClass]
+public class CVLoggerProviderTests
+{
+    private readonly Mock<ILogsWriter> logsWriterMock = new();
+    private CVLoggerProvider cVLoggerProvider;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.cVLoggerProvider = new CVLoggerProvider(this.logsWriterMock.Object);
+    }
+
+    [TestMethod]
+    public void CreateLogger_CreatesNewLogger()
+    {
+        var logger = this.cVLoggerProvider.CreateLogger(string.Empty);
+
+        logger.Should().NotBeNull();
+    }
+
+    [TestMethod]
+    public void LogEntry_CallsLogWriter()
+    {
+        this.cVLoggerProvider.LogEntry(new Log());
+
+        this.logsWriterMock.Verify();
+    }
+
+    private void SetupLogsWriter()
+    {
+        this.logsWriterMock
+            .Setup(u => u.WriteLog(It.IsAny<Log>()))
+            .Verifiable();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Logging/CVLoggerTests.cs

@@ -0,0 +1,75 @@
+using FluentAssertions;
+using Microsoft.Extensions.Logging;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Logging;
+
+namespace SystemExtensions.DependencyInjection.Tests.Logging;
+
+[TestClass]
+public class CVLoggerTests
+{
+    private readonly Mock<ICVLoggerProvider> cvLoggerProviderMock = new();
+    private CVLogger cVLogger;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.cVLogger = new CVLogger(string.Empty, this.cvLoggerProviderMock.Object);
+    }
+
+    [TestMethod]
+    public void BeginScope_ReturnsNull()
+    {
+        var scope = this.cVLogger.BeginScope(string.Empty);
+
+        scope.Should().BeNull();
+    }
+
+    [TestMethod]
+    [DataRow(LogLevel.Debug)]
+    [DataRow(LogLevel.Trace)]
+    [DataRow(LogLevel.Information)]
+    [DataRow(LogLevel.Warning)]
+    [DataRow(LogLevel.Error)]
+    [DataRow(LogLevel.Critical)]
+    public void IsEnabled_OnAllLogLevels_ReturnsTrue(LogLevel logLevel)
+    {
+        var enabled = this.cVLogger.IsEnabled(logLevel);
+
+        enabled.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void Log_CallsFormatter()
+    {
+        var called = false;
+        Func<string, Exception, string> messageFormatter = new((state, exception) =>
+        {
+            called = true;
+            return string.Empty;
+        });
+
+        this.cVLogger.Log(LogLevel.Debug, new EventId(), "Some message", new Exception(), messageFormatter);
+
+        called.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void Log_CallsLogsProvider()
+    {
+        this.SetupLoggerProvider();
+
+        this.cVLogger.Log(LogLevel.Debug, new EventId(), "Some message", new Exception(), new Func<string, Exception, string>((s, e) => string.Empty));
+
+        this.cvLoggerProviderMock.Verify();
+    }
+
+    private void SetupLoggerProvider()
+    {
+        this.cvLoggerProviderMock
+            .Setup(u => u.LogEntry(It.IsAny<Log>()))
+            .Verifiable();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Logging/DebugLogsWriterTests.cs

@@ -0,0 +1,29 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.Logging;
+
+namespace SystemExtensions.DependencyInjection.Tests.Logging;
+
+[TestClass]
+public class DebugLogsWriterTests
+{
+    private readonly DebugLogsWriter logsWriter = new();
+
+    [TestMethod]
+    public void WriteLog_Succeeds()
+    {
+        this.logsWriter.WriteLog(new Log());
+    }
+
+    [TestMethod]
+    public void WriteNullLog_Throws()
+    {
+        Action action = new(() =>
+        {
+            this.logsWriter.WriteLog(null);
+        });
+
+        action.Should().Throw<Exception>();
+    }
+}

SystemExtensions.DependencyInjection.Tests/Logging/LoggerResolverTests.cs

@@ -0,0 +1,107 @@
+using FluentAssertions;
+using Microsoft.Extensions.Logging;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Moq;
+using System;
+using System.Logging;
+
+namespace SystemExtensions.DependencyInjection.Tests.Logging;
+
+[TestClass]
+public class LoggerResolverTests
+{
+    private readonly Mock<Slim.IServiceProvider> serviceProviderMock = new();
+    private readonly Mock<ILoggerFactory> loggerFactoryMock = new();
+    private readonly Mock<ILogger> loggerMock = new();
+    private readonly LoggerResolver loggerResolver = new();
+
+    [TestMethod]
+    public void CanResolve_ILogger_ReturnsTrue()
+    {
+        var type = typeof(ILogger);
+
+        var canResolve = this.loggerResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_GenericILogger_ReturnsTrue()
+    {
+        var type = typeof(ILogger<string>);
+
+        var canResolve = this.loggerResolver.CanResolve(type);
+
+        canResolve.Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void CanResolve_AnythingElse_ReturnsFalse()
+    {
+        var types = new Type[] { typeof(CVLogger), typeof(object), typeof(string), typeof(LoggerResolverTests), typeof(int) };
+
+        foreach(var type in types)
+        {
+            var canResolve = this.loggerResolver.CanResolve(type);
+
+            canResolve.Should().BeFalse();
+        }   
+    }
+
+    [TestMethod]
+    public void Resolve_ILogger_ReturnsILogger()
+    {
+        this.SetupIServiceProvider();
+
+        var logger = this.loggerResolver.Resolve(this.serviceProviderMock.Object, typeof(ILogger));
+
+        logger.Should().BeAssignableTo<ILogger>();
+    }
+
+    [TestMethod]
+    public void Resolve_TypedILogger_ReturnsTypedILogger()
+    {
+        this.SetupIServiceProvider();
+
+        var logger = this.loggerResolver.Resolve(this.serviceProviderMock.Object, typeof(ILogger<string>));
+
+        logger.Should().BeAssignableTo<ILogger<string>>();
+    }
+
+    [TestMethod]
+    public void Resolve_RandomType_Throws()
+    {
+        this.SetupIServiceProvider();
+
+        Action action = new(() =>
+        {
+            this.loggerResolver.Resolve(this.serviceProviderMock.Object, typeof(string));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    [TestMethod]
+    public void Resolve_NonTypedGeneric_Throws()
+    {
+        this.SetupIServiceProvider();
+
+        Action action = new(() =>
+        {
+            this.loggerResolver.Resolve(this.serviceProviderMock.Object, typeof(ILogger<>));
+        });
+
+        action.Should().Throw<Exception>();
+    }
+
+    private void SetupIServiceProvider()
+    {
+        this.serviceProviderMock
+            .Setup(u => u.GetService<ILoggerFactory>())
+            .Returns(this.loggerFactoryMock.Object);
+
+        this.loggerFactoryMock
+            .Setup(u => u.CreateLogger(It.IsAny<string>()))
+            .Returns(this.loggerMock.Object);
+    }
+}

SystemExtensions.DependencyInjection.Tests/SystemExtensions.NetStandard.DependencyInjection.Tests.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
+    <PackageReference Include="Moq" Version="4.18.2" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="coverlet.collector" Version="3.1.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SystemExtensions.NetStandard.DependencyInjection\SystemExtensions.NetStandard.DependencyInjection.csproj" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetCore/Extensions/ObjectExtensions.cs

@@ -0,0 +1,22 @@
+using System.Runtime.CompilerServices;
+
+namespace System.Core.Extensions;
+
+public static class ObjectExtensions
+{
+    public static T ThrowIfNull<T>([ValidatedNotNull] this T obj, [CallerArgumentExpression("obj")] string? paramName = null)
+        where T : class
+    {
+        if (obj is null)
+        {
+            throw new ArgumentNullException(paramName);
+        }
+
+        return obj;
+    }
+
+    [AttributeUsage(AttributeTargets.Parameter)]
+    sealed class ValidatedNotNullAttribute : Attribute
+    {
+    }
+}

SystemExtensions.NetCore/SystemExtensions.NetCore.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+	<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <Nullable>enable</Nullable>
+    <RootNamespace>System</RootNamespace>
+	<PackageLicenseFile>LICENSE</PackageLicenseFile>
+	<PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+	<Version>1.0.1</Version>
+	<Authors>Alexandru Macocian</Authors>
+	<RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+	<Description>Extensions for the System namespace</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+	<None Include="../LICENSE">
+		<Pack>True</Pack>
+		<PackagePath></PackagePath>
+	</None>
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.DependencyInjection/Configuration/DefaultOptionsManager.cs

@@ -0,0 +1,13 @@
+namespace System.Configuration;
+
+public sealed class DefaultOptionsManager : IOptionsManager
+{
+    public T GetOptions<T>() where T : class
+    {
+        return default;
+    }
+
+    public void UpdateOptions<T>(T value) where T : class
+    {
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/ILiveOptions.cs

@@ -0,0 +1,8 @@
+using Microsoft.Extensions.Options;
+
+namespace System.Configuration;
+
+public interface ILiveOptions<T> : IOptions<T>
+    where T : class
+{
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/ILiveUpdateableOptions.cs

@@ -0,0 +1,6 @@
+namespace System.Configuration;
+
+public interface ILiveUpdateableOptions<T> : ILiveOptions<T>, IUpdateableOptions<T>
+    where T : class
+{
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/IOptionsManager.cs

@@ -0,0 +1,9 @@
+namespace System.Configuration;
+
+public interface IOptionsManager
+{
+    T GetOptions<T>()
+        where T : class;
+    void UpdateOptions<T>(T value)
+        where T : class;
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/IUpdateableOptions.cs

@@ -0,0 +1,12 @@
+using Microsoft.Extensions.Options;
+
+namespace System.Configuration;
+
+public interface IUpdateableOptions<out T> : IOptions<T>
+    where T : class
+{
+    /// <summary>
+    /// Updates the configuration with the current value stored in <see cref="IOptions{TOptions}.Value"/>.
+    /// </summary>
+    void UpdateOption();
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/LiveOptionsResolver.cs

@@ -0,0 +1,26 @@
+using Slim.Resolvers;
+
+namespace System.Configuration;
+
+public sealed class LiveOptionsResolver : IDependencyResolver
+{
+    private static readonly Type optionsType = typeof(LiveUpdateableOptionsWrapper<>);
+
+    public bool CanResolve(Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(ILiveOptions<>))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public object Resolve(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        var typedOptionsType = optionsType.MakeGenericType(type.GetGenericArguments());
+        var configurationManager = serviceProvider.GetService<IOptionsManager>();
+
+        return Activator.CreateInstance(typedOptionsType, configurationManager);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/LiveUpdateableOptionsResolver.cs

@@ -0,0 +1,25 @@
+using Slim.Resolvers;
+
+namespace System.Configuration;
+
+public sealed class LiveUpdateableOptionsResolver : IDependencyResolver
+{
+    private static readonly Type optionsType = typeof(LiveUpdateableOptionsWrapper<>);
+
+    public bool CanResolve(Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(ILiveUpdateableOptions<>))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public object Resolve(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        var typedOptionsType = optionsType.MakeGenericType(type.GetGenericArguments());
+        var configurationManager = serviceProvider.GetService<IOptionsManager>();
+        return Activator.CreateInstance(typedOptionsType, configurationManager);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/LiveUpdateableOptionsWrapper.cs

@@ -0,0 +1,30 @@
+using System.Extensions;
+
+namespace System.Configuration;
+
+public sealed class LiveUpdateableOptionsWrapper<T> : ILiveUpdateableOptions<T>
+    where T : class
+{
+    private readonly IOptionsManager configurationManager;
+
+    private T value;
+
+    public T Value
+    {
+        get
+        {
+            this.value = this.configurationManager.GetOptions<T>();
+            return this.value;
+        }
+    }
+
+    public LiveUpdateableOptionsWrapper(IOptionsManager configurationManager)
+    {
+        this.configurationManager = configurationManager.ThrowIfNull(nameof(configurationManager));
+    }
+
+    public void UpdateOption()
+    {
+        this.configurationManager.UpdateOptions<T>(this.value);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/OptionsResolver.cs

@@ -0,0 +1,32 @@
+using Microsoft.Extensions.Options;
+using Slim.Resolvers;
+
+namespace System.Configuration;
+
+public sealed class OptionsResolver : IDependencyResolver
+{
+    private static readonly Type optionsType = typeof(OptionsWrapper<>);
+    private static readonly Type configurationType = typeof(IOptionsManager);
+
+    public bool CanResolve(Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IOptions<>))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public object Resolve(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        var typedOptionsType = optionsType.MakeGenericType(type.GetGenericArguments());
+        var configurationManager = serviceProvider.GetService<IOptionsManager>();
+        var optionsValue = configurationType
+            .GetMethod(nameof(IOptionsManager.GetOptions))
+            .MakeGenericMethod(type.GetGenericArguments())
+            .Invoke(configurationManager, Array.Empty<object>());
+
+        return Activator.CreateInstance(typedOptionsType, optionsValue);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/UpdateableOptionsResolver.cs

@@ -0,0 +1,32 @@
+using Slim.Resolvers;
+using System.Extensions.Configuration;
+
+namespace System.Configuration;
+
+public sealed class UpdateableOptionsResolver : IDependencyResolver
+{
+    private static readonly Type optionsType = typeof(UpdateableOptionsWrapper<>);
+    private static readonly Type configurationType = typeof(IOptionsManager);
+
+    public bool CanResolve(Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IUpdateableOptions<>))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public object Resolve(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        var typedOptionsType = optionsType.MakeGenericType(type.GetGenericArguments());
+        var configurationManager = serviceProvider.GetService<IOptionsManager>();
+        var optionsValue = configurationType
+            .GetMethod(nameof(IOptionsManager.GetOptions))
+            .MakeGenericMethod(type.GetGenericArguments())
+            .Invoke(configurationManager, Array.Empty<object>());
+
+        return Activator.CreateInstance(typedOptionsType, configurationManager, optionsValue);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Configuration/UpdateableOptionsWrapper.cs

@@ -0,0 +1,22 @@
+using System.Configuration;
+
+namespace System.Extensions.Configuration;
+
+public sealed class UpdateableOptionsWrapper<T> : IUpdateableOptions<T>
+    where T : class
+{
+    private readonly IOptionsManager configurationManager;
+    
+    public T Value { get; }
+
+    public UpdateableOptionsWrapper(IOptionsManager configurationManager, T options)
+    {
+        this.configurationManager = configurationManager.ThrowIfNull(nameof(configurationManager));
+        this.Value = options;
+    }
+
+    public void UpdateOption()
+    {
+        this.configurationManager.UpdateOptions(this.Value);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Extensions/ServiceManagerExtensions.cs

@@ -0,0 +1,189 @@
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using Slim;
+using System.Configuration;
+using System.DependencyInjection.Http;
+using System.Http;
+using System.Logging;
+using System.Net.Http;
+
+namespace System.Extensions;
+
+public static class ServiceManagerExtensions
+{
+    /// <summary>
+    /// Registers a <see cref="IOptionsManager"/> with the default <see cref="DefaultOptionsManager"/>.
+    /// This call also registers the resolver that resolves <see cref="IUpdateableOptions{T}"/> and <see cref="IOptions{T}"/>.
+    /// </summary>
+    /// <param name="serviceManager"><see cref="IServiceManager"/>.</param>
+    /// <returns>Provided <see cref="IServiceManager"/>.</returns>
+    public static IServiceProducer RegisterOptionsManager(this IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterSingleton<IOptionsManager, DefaultOptionsManager>();
+        serviceProducer.RegisterOptionsResolver();
+
+        return serviceProducer;
+    }
+
+    /// <summary>
+    /// Registers a <see cref="IOptionsManager"/>.
+    /// This call also registers the resolver that resolves <see cref="IUpdateableOptions{T}"/> and <see cref="IOptions{T}"/>.
+    /// </summary>
+    /// <typeparam name="T">Implementation of <see cref="IOptionsManager"/>.</typeparam>
+    /// <param name="serviceManager"><see cref="IServiceManager"/>.</param>
+    /// <returns>Provided <see cref="IServiceManager"/>.</returns>
+    public static IServiceProducer RegisterOptionsManager<T>(this IServiceProducer serviceProducer)
+        where T : IOptionsManager
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterSingleton<IOptionsManager, T>();
+        serviceProducer.RegisterOptionsResolver();
+
+        return serviceProducer;
+    }
+
+    /// <summary>
+    /// Registers resolvers for <see cref="IOptions{TOptions}"/> and <see cref="IUpdateableOptions{T}"/>.
+    /// Depends on a <see cref="IOptionsManager"/> in order to properly resolve options.
+    /// </summary>
+    /// <param name="serviceManager"><see cref="IServiceManager"/>.</param>
+    /// <returns><see cref="IServiceManager"/>.</returns>
+    public static IServiceProducer RegisterOptionsResolver(this IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterResolver(new OptionsResolver());
+        serviceProducer.RegisterResolver(new UpdateableOptionsResolver());
+        serviceProducer.RegisterResolver(new LiveOptionsResolver());
+        serviceProducer.RegisterResolver(new LiveUpdateableOptionsResolver());
+
+        return serviceProducer;
+    }
+
+    /// <summary>
+    /// Registers a <see cref="ILogsWriter"/> with the default <see cref="CVLoggerProvider"/>.
+    /// </summary>
+    /// <typeparam name="TLogsWriter">Implementation of <see cref="ILogsWriter"/>.</typeparam>
+    /// <param name="serviceManager"><see cref="IServiceProducer"/>.</param>
+    /// <returns>Provided <see cref="IServiceProducer"/>.</returns>
+    public static IServiceProducer RegisterLogWriter<TLogsWriter>(this IServiceProducer serviceManager)
+        where TLogsWriter : ILogsWriter
+    {
+        serviceManager.ThrowIfNull(nameof(serviceManager));
+
+        serviceManager.RegisterSingleton<ILogsWriter, TLogsWriter>();
+        serviceManager.RegisterScoped<ILoggerFactory, LoggerFactory>(sp =>
+        {
+            var factory = new LoggerFactory();
+            factory.AddProvider(new CVLoggerProvider(sp.GetService<ILogsWriter>()));
+            return factory;
+        });
+
+        return serviceManager;
+    }
+
+    /// <summary>
+    /// Registers a <see cref="ILogsWriter"/> with the default <see cref="CVLoggerProvider"/>.
+    /// </summary>
+    /// <typeparam name="TILogsWriter">Interface of <see cref="ILogsWriter"/>.</typeparam>
+    /// <typeparam name="TLogsWriter">Implementation of <see cref="ILogsWriter"/>.</typeparam>
+    /// <param name="serviceManager"><see cref="IServiceProducer"/>.</param>
+    /// <returns>Provided <see cref="IServiceProducer"/>.</returns>
+    public static IServiceProducer RegisterLogWriter<TILogsWriter, TLogsWriter>(this IServiceProducer serviceManager)
+        where TLogsWriter : TILogsWriter
+        where TILogsWriter : class, ILogsWriter
+    {
+        serviceManager.ThrowIfNull(nameof(serviceManager));
+
+        serviceManager.RegisterSingleton<TILogsWriter, TLogsWriter>();
+        serviceManager.RegisterScoped<ILoggerFactory, LoggerFactory>(sp =>
+        {
+            var factory = new LoggerFactory();
+            factory.AddProvider(new CVLoggerProvider(sp.GetService<TILogsWriter>()));
+            return factory;
+        });
+
+        return serviceManager;
+    }
+
+    /// <summary>
+    /// Register a <see cref="ILoggerFactory"/> with a <see cref="CVLoggerProvider"/>.
+    /// </summary>
+    /// <param name="serviceProducer"></param>
+    /// <returns></returns>
+    public static IServiceProducer RegisterCVLoggerFactory(this IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterScoped<ILoggerFactory, LoggerFactory>(sp =>
+        {
+            LoggerFactory loggerFactory = new();
+            loggerFactory.AddProvider(new CVLoggerProvider(sp.GetService<ILogsWriter>()));
+            return loggerFactory;
+        });
+
+        return serviceProducer;
+    }
+
+    /// <summary>
+    /// Registers a <see cref="ILoggerFactory"/>.
+    /// </summary>
+    /// <param name="serviceProducer"><see cref="IServiceProducer"/>.</param>
+    /// <param name="loggerFactory">Factory that produces a <see cref="ILoggerFactory"/>.</param>
+    /// <returns></returns>
+    public static IServiceProducer RegisterLoggerFactory(this IServiceProducer serviceProducer, Func<Slim.IServiceProvider, ILoggerFactory> loggerFactory)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterSingleton<ILoggerFactory, ILoggerFactory>(loggerFactory);
+        return serviceProducer;
+    }
+
+    /// <summary>
+    /// Registers a <see cref="ILoggerFactory"/> with a <see cref="ILogsWriter"/> that writes to <see cref="Diagnostics.Debug"/>.
+    /// </summary>
+    /// <param name="serviceProducer"><see cref="IServiceProducer"/>.</param>
+    /// <returns></returns>
+    public static IServiceProducer RegisterDebugLoggerFactory(this IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterLogWriter<ILogsWriter, DebugLogsWriter>();
+        return serviceProducer;
+    }
+
+    /// <summary>
+    /// Register a scoped <see cref="IHttpClient{TScope}"/> to be used by the DI engine.
+    /// </summary>
+    /// <typeparam name="T">Type of the scoped <see cref="IHttpClient{TScope}"/>.</typeparam>
+    /// <param name="serviceProducer"><see cref="IServiceProducer"/>.</param>
+    /// <returns><see cref="HttpClientBuilder{T}"/> to build the http client.</returns>
+    public static HttpClientBuilder<T> RegisterHttpClient<T>(this IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        return new HttpClientBuilder<T>(serviceProducer);
+    }
+
+    [Obsolete($"{nameof(RegisterHttpFactory)} is obsolete. Please use {nameof(RegisterHttpClient)} for each service that requires an instance of {nameof(IHttpClient<object>)}.")]
+    public static IServiceProducer RegisterHttpFactory(this IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterResolver(new HttpClientResolver());
+        return serviceProducer;
+    }
+    [Obsolete($"{nameof(RegisterHttpFactory)} is obsolete. Please use {nameof(RegisterHttpClient)} for each service that requires an instance of {nameof(IHttpClient<object>)}.")]
+    public static IServiceProducer RegisterHttpFactory(this IServiceProducer serviceProducer, Func<Slim.IServiceProvider, Type, HttpMessageHandler> handlerFactory)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        serviceProducer.RegisterResolver(
+            new HttpClientResolver()
+            .WithHttpMessageHandlerFactory(handlerFactory));
+        return serviceProducer;
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Global.cs

@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("SystemExtensions.NetStandard.DependencyInjection.Tests")]

SystemExtensions.NetStandard.DependencyInjection/Http/HttpClientBuilder.cs

@@ -0,0 +1,85 @@
+using Slim;
+using System.Extensions;
+using System.Net.Http;
+using System.Net.Http.Headers;
+
+namespace System.DependencyInjection.Http;
+
+public sealed class HttpClientBuilder<T>
+{
+    private readonly IServiceProducer serviceProducer;
+
+    private Uri baseAddress;
+    private Func<IServiceProvider, HttpMessageHandler> httpMessageHandlerFactory;
+    private bool disposeMessageHandler;
+    private Action<HttpRequestHeaders> defaultRequestHeadersSetup;
+    private long maxResponseBufferSize = 2147483647L; //2GB default HttpClient value [https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpclient.maxresponsecontentbuffersize?view=net-6.0]
+    private TimeSpan timeout = TimeSpan.FromSeconds(100); //100 seconds default HttpClient value [https://docs.microsoft.com/en-us/dotnet/api/system.net.http.httpclient.timeout?view=net-6.0]
+
+    internal HttpClientBuilder(IServiceProducer serviceProducer)
+    {
+        serviceProducer.ThrowIfNull(nameof(serviceProducer));
+
+        this.serviceProducer = serviceProducer;
+    }
+
+    public HttpClientBuilder<T> WithMessageHandler(Func<IServiceProvider, HttpMessageHandler> httpMessageHandlerFactory)
+    {
+        httpMessageHandlerFactory.ThrowIfNull(nameof(httpMessageHandlerFactory));
+
+        this.httpMessageHandlerFactory = httpMessageHandlerFactory;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithDisposeMessageHandler(bool disposeMessageHandler)
+    {
+        this.disposeMessageHandler = disposeMessageHandler;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithBaseAddress(Uri baseAddress)
+    {
+        baseAddress.ThrowIfNull(nameof(baseAddress));
+
+        this.baseAddress = baseAddress;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithDefaultRequestHeadersSetup(Action<HttpRequestHeaders> setup)
+    {
+        setup.ThrowIfNull(nameof(setup));
+
+        this.defaultRequestHeadersSetup = setup;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithMaxResponseBufferSize(long responseBufferSize)
+    {
+        this.maxResponseBufferSize = responseBufferSize;
+        return this;
+    }
+
+    public HttpClientBuilder<T> WithTimeout(TimeSpan timeout)
+    {
+        this.timeout = timeout;
+        return this;
+    }
+
+    public IServiceProducer Build()
+    {
+        this.serviceProducer.RegisterScoped<IHttpClient<T>>(sp =>
+        {
+            var client = this.httpMessageHandlerFactory is not null ?
+                new HttpClient<T>(this.httpMessageHandlerFactory(sp), this.disposeMessageHandler) :
+                new HttpClient<T>();
+
+            client.BaseAddress = this.baseAddress;
+            this.defaultRequestHeadersSetup?.Invoke(client.DefaultRequestHeaders);
+            client.MaxResponseContentBufferSize = this.maxResponseBufferSize;
+            client.Timeout = this.timeout;
+            return client;
+        });
+
+        return this.serviceProducer;
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Http/HttpClientResolver.cs

@@ -0,0 +1,47 @@
+using Slim.Resolvers;
+using System.Linq;
+using System.Net.Http;
+
+namespace System.Http;
+
+[Obsolete($"Please use {nameof(Extensions.ServiceManagerExtensions.RegisterHttpClient)} for each use case of {nameof(IHttpClient<object>)}")]
+public sealed class HttpClientResolver : IDependencyResolver
+{
+    private static readonly Type clientType = typeof(HttpClient<>);
+
+    /// <summary>
+    /// Factory method. <see cref="Type"/> parameter of the factory is the scope of <see cref="IHttpClient{TScope}"/>.
+    /// </summary>
+    public Func<Slim.IServiceProvider, Type, HttpMessageHandler> HttpMessageHandlerFactory { get; set; }
+
+    /// <summary>
+    /// Sets the <see cref="HttpMessageHandlerFactory"/>.
+    /// </summary>
+    /// <param name="factory">Factory method. <see cref="Type"/> parameter of the factory is the scope of <see cref="IHttpClient{TScope}"/>.</param>
+    /// <returns></returns>
+    public HttpClientResolver WithHttpMessageHandlerFactory(Func<Slim.IServiceProvider, Type, HttpMessageHandler> factory)
+    {
+        this.HttpMessageHandlerFactory = factory;
+        return this;
+    }
+
+    public bool CanResolve(Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IHttpClient<>))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public object Resolve(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        var typedClientType = clientType.MakeGenericType(type.GetGenericArguments());
+        var handler = this.HttpMessageHandlerFactory?.Invoke(serviceProvider, type.GetGenericArguments().First());
+        var httpClient = handler is null ?
+            Activator.CreateInstance(typedClientType) :
+            Activator.CreateInstance(typedClientType, new object[] { handler });
+        return httpClient;
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Logging/CVLogger.cs

@@ -0,0 +1,43 @@
+using Microsoft.Extensions.Logging;
+using System.Extensions;
+
+namespace System.Logging;
+
+public sealed class CVLogger : ILogger
+{
+    private readonly string category;
+    private readonly ICVLoggerProvider cvLoggerProvider;
+
+    public CVLogger(string category, ICVLoggerProvider cvLoggerProvider)
+    {
+        this.category = category;
+        this.cvLoggerProvider = cvLoggerProvider.ThrowIfNull(nameof(cvLoggerProvider));
+    }
+
+    public IDisposable BeginScope<TState>(TState state)
+    {
+        return null;
+    }
+
+    public bool IsEnabled(LogLevel logLevel)
+    {
+        return true;
+    }
+
+    public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)
+    {
+        var message = formatter(state, exception);
+
+        var log = new Log
+        {
+            Exception = exception,
+            LogLevel = logLevel,
+            EventId = eventId.Name,
+            Message = message,
+            Category = category,
+            LogTime = DateTime.Now
+        };
+
+        this.cvLoggerProvider.LogEntry(log);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Logging/CVLoggerProvider.cs

@@ -0,0 +1,38 @@
+using Microsoft.CorrelationVector;
+using Microsoft.Extensions.Logging;
+using System.Extensions;
+
+namespace System.Logging;
+
+public sealed class CVLoggerProvider : ICVLoggerProvider
+{
+    private readonly ILogsWriter logsManager;
+    private readonly CorrelationVector correlationVector;
+
+    public CVLoggerProvider(ILogsWriter logsWriter)
+    {
+        this.logsManager = logsWriter.ThrowIfNull(nameof(logsWriter));
+        this.correlationVector = new CorrelationVector();
+    }
+
+    public void LogEntry(Log log)
+    {
+        if (this.correlationVector is not null)
+        {
+            log.CorrelationVector = this.correlationVector.Value.ToString();
+            this.correlationVector.Increment();
+        }
+
+        this.logsManager.WriteLog(log);
+    }
+
+    public ILogger CreateLogger(string categoryName)
+    {
+        return new CVLogger(categoryName, this);
+    }
+
+    public void Dispose()
+    {
+        throw new System.NotImplementedException();
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Logging/DebugLogsWriter.cs

@@ -0,0 +1,11 @@
+using System.Diagnostics;
+
+namespace System.Logging;
+
+public sealed class DebugLogsWriter : ILogsWriter
+{
+    public void WriteLog(Log log)
+    {
+        Debug.WriteLine($"{log.LogTime} - {log.Category} - {log.EventId} - {log.CorrelationVector} - {log.LogLevel} - {log.Message}{Environment.NewLine}{log.Exception}");
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Logging/ICVLoggerProvider.cs

@@ -0,0 +1,8 @@
+using Microsoft.Extensions.Logging;
+
+namespace System.Logging;
+
+public interface ICVLoggerProvider : ILoggerProvider
+{
+    void LogEntry(Log log);
+}

SystemExtensions.NetStandard.DependencyInjection/Logging/ILogsWriter.cs

@@ -0,0 +1,6 @@
+namespace System.Logging;
+
+public interface ILogsWriter
+{
+    void WriteLog(Log log);
+}

SystemExtensions.NetStandard.DependencyInjection/Logging/LoggerResolver.cs

@@ -0,0 +1,49 @@
+using Microsoft.Extensions.Logging;
+using Slim.Resolvers;
+using System.Linq;
+
+namespace System.Logging;
+
+public sealed class LoggerResolver : IDependencyResolver
+{
+    public bool CanResolve(Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(ILogger<>) ||
+            type == typeof(ILogger))
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    public object Resolve(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(ILogger<>))
+        {
+            return ResolveScopedLogger(serviceProvider, type);
+        }
+        else if (type == typeof(ILogger))
+        {
+            return ResolveLogger(serviceProvider);
+        }
+        else
+        {
+            throw new InvalidOperationException($"{nameof(LoggerResolver)} cannot resolve an object of type {type.Name}");
+        }
+    }
+
+    private static object ResolveScopedLogger(Slim.IServiceProvider serviceProvider, Type type)
+    {
+        var loggerFactory = serviceProvider.GetService<ILoggerFactory>();
+        var categoryTypes = type.GetGenericArguments();
+        var createLoggerMethod = typeof(LoggerFactoryExtensions).GetMethods().Where(m => m.IsGenericMethodDefinition && m.Name == nameof(LoggerFactoryExtensions.CreateLogger)).First();
+        return createLoggerMethod.MakeGenericMethod(categoryTypes.First()).Invoke(null, new object[] { loggerFactory });
+    }
+
+    private static object ResolveLogger(Slim.IServiceProvider serviceProvider)
+    {
+        var loggerFactory = serviceProvider.GetService<ILoggerFactory>();
+        return loggerFactory.CreateLogger(string.Empty);
+    }
+}

SystemExtensions.NetStandard.DependencyInjection/Models/Log.cs

@@ -0,0 +1,14 @@
+using Microsoft.Extensions.Logging;
+
+namespace System.Logging;
+
+public sealed record Log
+{
+    public Exception Exception { get; set; }
+    public DateTime LogTime { get; set; }
+    public string Category { get; set; }
+    public string EventId { get; set; }
+    public LogLevel LogLevel { get; set; }
+    public string Message { get; set; }
+    public string CorrelationVector { get; set; }
+}

SystemExtensions.NetStandard.DependencyInjection/Models/TypedHttpClientFactory.cs

@@ -0,0 +1,8 @@
+using System.Net.Http;
+
+namespace System.DependencyInjection.Models;
+
+internal sealed class TypedHttpClientFactory<T>
+{
+    public Func<Slim.IServiceProvider, HttpMessageHandler> Factory { get; set; }
+}

SystemExtensions.NetStandard.DependencyInjection/SystemExtensions.NetStandard.DependencyInjection.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <RootNamespace>System.DependencyInjection</RootNamespace>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
+    <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <LangVersion>latest</LangVersion>
+    <Version>1.2.3</Version>
+    <Authors>Alexandru Macocian</Authors>
+    <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+    <Description>Extensions for the Slim Dependency Injection engine</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="..\LICENSE" Link="LICENSE">
+      <PackagePath></PackagePath>
+      <Pack>True</Pack>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CorrelationVector" Version="1.0.42" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
+    <PackageReference Include="Slim" Version="1.9.2" />
+    <PackageReference Include="SystemExtensions.NetStandard" Version="1.5.0" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.Security.Tests/AesEncrypterTests.cs

@@ -0,0 +1,104 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Security.Encryption;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public class AesEncrypterTests
+{
+    private ISymmetricEncrypter symmetricEncrypter;
+    private string keyString;
+    private byte[] keyBytes;
+    private byte[] ivBytes;
+    private string ivString;
+    private string toEncryptString;
+    private byte[] toEncryptBytes;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.symmetricEncrypter = new AesEncrypter();
+        this.keyBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2 };
+        this.keyString = Convert.ToBase64String(this.keyBytes);
+        this.ivBytes = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6 };
+        this.ivString = Convert.ToBase64String(this.ivBytes);
+        this.toEncryptBytes = Encoding.UTF8.GetBytes("toEncrypt");
+        this.toEncryptString = Convert.ToBase64String(this.toEncryptBytes);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStringWithStringKeyStringIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyString, this.ivString, this.toEncryptString).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyString, this.ivString, encrypted).ConfigureAwait(false);
+
+        this.toEncryptString.Should().Be(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStringWithByteKeyByteIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyBytes, this.ivBytes, this.toEncryptString).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyBytes, this.ivBytes, encrypted).ConfigureAwait(false);
+
+        this.toEncryptString.Should().Be(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptByteWithStringKeyStringIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyString, this.ivString, this.toEncryptBytes).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyString, this.ivString, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptByteWithByteKeyByteIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyBytes, this.ivBytes, this.toEncryptBytes).ConfigureAwait(false);
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyBytes, this.ivBytes, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(decrypted);
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStreamWithStringKeyStringIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyString, this.ivString, new MemoryStream(this.toEncryptBytes)).ConfigureAwait(false);
+        encrypted.Position = 0;
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyString, this.ivString, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(((MemoryStream)decrypted).ToArray());
+    }
+
+    [TestMethod]
+    public async Task EncryptDecryptStreamWithByteKeyByteIv()
+    {
+        var encrypted = await this.symmetricEncrypter.Encrypt(this.keyBytes, this.ivBytes, new MemoryStream(this.toEncryptBytes)).ConfigureAwait(false);
+        encrypted.Position = 0;
+        var decrypted = await this.symmetricEncrypter.Decrypt(this.keyBytes, this.ivBytes, encrypted).ConfigureAwait(false);
+
+        this.toEncryptBytes.Should().BeEquivalentTo(((MemoryStream)decrypted).ToArray());
+    }
+
+    [TestMethod]
+    public void GetEncryptionStreamReturnsCryptoStream()
+    {
+        var encryptionStream = this.symmetricEncrypter.GetEncryptionStream(this.keyBytes, this.ivBytes, new MemoryStream());
+        encryptionStream.Should().BeAssignableTo<CryptoStream>();
+    }
+
+    [TestMethod]
+    public void GetDecryptionStreamReturnsCryptoStream()
+    {
+        var encryptionStream = this.symmetricEncrypter.GetDecryptionStream(this.keyBytes, this.ivBytes, new MemoryStream());
+        encryptionStream.Should().BeAssignableTo<CryptoStream>();
+    }
+}

SystemExtensions.NetStandard.Security.Tests/CryptoRngProviderTests.cs

@@ -0,0 +1,54 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Linq;
+using System.Security.Rng;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public class CryptoRngProviderTests
+{
+    private CryptoRngProvider cryptoRngProvider;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.cryptoRngProvider = new CryptoRngProvider();
+    }
+
+    [TestMethod]
+    public void GetBytes_ShouldSetValues()
+    {
+        var bytes = new byte[100];
+
+        this.cryptoRngProvider.GetBytes(bytes);
+
+        bytes.All(b => b == 0).Should().BeFalse();
+    }
+
+    [TestMethod]
+    public void GetNonZeroBytes_ShouldSetNonZeroValues()
+    {
+        var bytes = new byte[100];
+
+        this.cryptoRngProvider.GetNonZeroBytes(bytes);
+
+        bytes.All(b => b != 0).Should().BeTrue();
+    }
+
+    [TestMethod]
+    public void GetBytes_ShouldReturnBytes()
+    {
+        var bytes = this.cryptoRngProvider.GetBytes(10);
+
+        bytes.Length.Should().Be(10);
+    }
+
+    [TestMethod]
+    public void GetNonZeroBytes_ShouldReturnBytes()
+    {
+        var bytes = this.cryptoRngProvider.GetNonZeroBytes(10);
+
+        bytes.Length.Should().Be(10);
+    }
+}

SystemExtensions.NetStandard.Security.Tests/Rfc2898DeriveBytesPasswordHashingServiceTests.cs

@@ -0,0 +1,260 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.Security.Hashing;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public sealed class Rfc2898DeriveBytesPasswordHashingServiceTests
+{
+    private const int TooShortHashLength = 31;
+    private const int DesiredHashLength = 32;
+    private const int Iterations = 10000;
+    private const int TooLittleIterations = 1000;
+
+    private readonly Rfc2898DeriveBytesPasswordHashingService rfc2898DeriveBytesPasswordHashingService = new();
+
+    private byte[] tooShortSaltBytes;
+    private string tooShortSaltString;
+    private byte[] incorrectSaltBytes;
+    private string incorrectSaltString;
+    private byte[] saltBytes;
+    private string saltString;
+    private byte[] passwordBytes;
+    private string passwordString;
+    private byte[] incorrectPasswordBytes;
+    private string incorrectPasswordString;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.tooShortSaltBytes = new byte[16];
+        this.tooShortSaltString = Convert.ToBase64String(this.tooShortSaltBytes);
+        this.saltBytes = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 };
+        this.incorrectSaltBytes = new byte[32];
+        this.incorrectSaltString = Convert.ToBase64String(this.incorrectSaltBytes);
+        this.saltString = Convert.ToBase64String(this.saltBytes);
+        this.passwordBytes = new byte[] { 5, 1, 2, 34, 35, 123, 4, 23, 1, 235, 32, 234 };
+        this.passwordString = Convert.ToBase64String(this.passwordBytes);
+        this.incorrectPasswordBytes = new byte[] { 14, 123, 23, 4, 2, 1, 23, 25 };
+        this.incorrectPasswordString = Convert.ToBase64String(this.incorrectPasswordBytes);
+    }
+
+    [TestMethod]
+    public void PasswordNull_HashBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(null, this.saltBytes, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void PasswordNull_HashString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(null, this.saltString, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_HashBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, null, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_HashString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, null, DesiredHashLength, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void HashLengthTooSmall_HashBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, TooShortHashLength, Iterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void HashLengthTooSmall_HashString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, TooShortHashLength, Iterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_HashBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_HashString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooShortSalt_HashBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<byte[]>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.tooShortSaltBytes, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooShortSalt_HashString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<string>>(() => this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.tooShortSaltString, DesiredHashLength, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void PasswordNull_VerifyBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(null, this.incorrectPasswordBytes, this.saltBytes, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void PasswordNull_VerifyString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(null, this.incorrectPasswordString, this.saltString, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void HashNull_VerifyBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordBytes, null, this.saltBytes, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void HashNull_VerifyString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordString, null, this.saltString, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_VerifyBytes_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordBytes, this.incorrectPasswordBytes, null, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void SaltNull_VerifyString_Throws_ArgumentNullException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordString, this.incorrectPasswordString, null, Iterations));
+
+        action.Should().ThrowAsync<ArgumentNullException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_VerifyBytes_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordBytes, this.incorrectPasswordBytes, this.saltBytes, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public void TooLittleIterations_VerifyString_Throws_InvalidOperationException()
+    {
+        var action = new Func<Task<bool>>(() => this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(this.passwordString, this.incorrectPasswordString, this.saltString, TooLittleIterations));
+
+        action.Should().ThrowAsync<InvalidOperationException>();
+    }
+    [TestMethod]
+    public async Task HashBytes_ReturnsHashedBytes()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        hashedBytes.Should().NotBeNull();
+        hashedBytes.Should().HaveCount(DesiredHashLength);
+    }
+    [TestMethod]
+    public async Task HashString_ReturnsHashedString()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        hashedString.Should().NotBeNull();
+        var hashedBytes = Convert.FromBase64String(hashedString);
+        hashedBytes.Should().HaveCount(DesiredHashLength);
+    }
+    [TestMethod]
+    public async Task VerifyBytes_CorrectPassword_ReturnsTrue()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.passwordBytes, this.saltBytes, Iterations);
+
+        result.Should().BeTrue();
+    }
+    [TestMethod]
+    public async Task VerifyString_CorrectPassword_ReturnsTrue()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.passwordString, this.saltString, Iterations);
+
+        result.Should().BeTrue();
+    }
+    [TestMethod]
+    public async Task VerifyBytes_IncorrectPassword_ReturnsFalse()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.incorrectPasswordBytes, this.saltBytes, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyString_IncorrectPassword_ReturnsFalse()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.incorrectPasswordString, this.saltString, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyBytes_IncorrectSalt_ReturnsFalse()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.passwordBytes, this.incorrectSaltBytes, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyString_IncorrectSalt_ReturnsFalse()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.passwordString, this.incorrectSaltString, Iterations);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyBytes_IncorrectIterations_ReturnsFalse()
+    {
+        var hashedBytes = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordBytes, this.saltBytes, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedBytes, this.passwordBytes, this.saltBytes, Iterations + 1);
+
+        result.Should().BeFalse();
+    }
+    [TestMethod]
+    public async Task VerifyString_IncorrectIterations_ReturnsFalse()
+    {
+        var hashedString = await this.rfc2898DeriveBytesPasswordHashingService.Hash(this.passwordString, this.saltString, DesiredHashLength, Iterations);
+
+        var result = await this.rfc2898DeriveBytesPasswordHashingService.VerifyPassword(hashedString, this.passwordString, this.saltString, Iterations + 1);
+
+        result.Should().BeFalse();
+    }
+}

SystemExtensions.NetStandard.Security.Tests/SecureStringTests.cs

@@ -0,0 +1,121 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Security.Encryption;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public class SecureStringTests
+{
+    [TestMethod]
+    public void SecureString_NewSecureString_ReturnsValue()
+    {
+        var str = new SecureString("hello");
+
+        str.Value.Should().Be("hello");
+    }
+
+    [TestMethod]
+    public void SecureStringEmpty_AreEqual()
+    {
+        var str = SecureString.Empty;
+        str.Should().Be(SecureString.Empty);
+    }
+
+    [TestMethod]
+    public void SecureStringEmpty_Equals_StringEmpty()
+    {
+        var ss = SecureString.Empty;
+        var s = string.Empty;
+
+        ss.Should().Be(s);
+    }
+
+    [TestMethod]
+    public void SecureString_Equals_OtherSecureString()
+    {
+        var ss1 = new SecureString("Hello");
+        var ss2 = new SecureString("Hello");
+
+        ss1.Equals(ss2).Should().BeTrue();
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", true)]
+    [DataRow("hello", "henlo", false)]
+    public void SecureString_EqualOperator_OtherSecureString(string str1, string str2, bool isEqual)
+    {
+        var ss1 = new SecureString(str1);
+        var ss2 = new SecureString(str2);
+
+        (ss1 == ss2).Should().Be(isEqual);
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", false)]
+    [DataRow("hello", "henlo", true)]
+    public void SecureString_DifferentOperator_OtherSecureString(string str1, string str2, bool isDifferent)
+    {
+        var ss1 = new SecureString(str1);
+        var ss2 = new SecureString(str2);
+
+        (ss1 != ss2).Should().Be(isDifferent);
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", true)]
+    [DataRow("hello", "henlo", false)]
+    public void SecureString_EqualOperator_String(string str1, string str2, bool isEqual)
+    {
+        var ss1 = new SecureString(str1);
+
+        (ss1 == str2).Should().Be(isEqual);
+    }
+
+    [TestMethod]
+    [DataRow("hello", "hello", false)]
+    [DataRow("hello", "henlo", true)]
+    public void SecureString_DifferentOperator_String(string str1, string str2, bool isDifferent)
+    {
+        var ss1 = new SecureString(str1);
+
+        (ss1 != str2).Should().Be(isDifferent);
+    }
+
+    [TestMethod]
+    public void SecureString_PlusOperator_SecureString()
+    {
+        var ss1 = new SecureString("Hello ");
+        var ss2 = new SecureString("World");
+
+        (ss1 + ss2).Should().Be("Hello World");
+    }
+
+    [TestMethod]
+    public void SecureString_PlusOperator_String()
+    {
+        var ss1 = new SecureString("Hello ");
+        var ss2 = "World";
+
+        (ss1 + ss2).Should().Be("Hello World");
+    }
+
+    [TestMethod]
+    public void SecureString_PlusOperator_Char()
+    {
+        var ss1 = new SecureString("Hello ");
+        var c = 'W';
+
+        (ss1 + c).Should().Be("Hello W");
+    }
+
+    [TestMethod]
+    public void SecureString_WithOptionalEntropy_Matches()
+    {
+        SecureString.AddOptionalEntropy(new byte[] { 10, 20, 25, 34, 56, 12, 10, 81, 200, 155, 123, 144, 123, 192, 122, 1 });
+        var ss1 = new SecureString("Hello");
+        var ss2 = new SecureString("Hello");
+
+        ss1.Should().Be(ss2);
+    }
+}

SystemExtensions.NetStandard.Security.Tests/Sha256HashingServiceTests.cs

@@ -0,0 +1,47 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.IO;
+using System.Security.Hashing;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SystemExtensions.NetStandard.Security.Tests;
+
+[TestClass]
+public sealed class Sha256HashingServiceTests
+{
+    private readonly IHashingService hashingService = new Sha256HashingService();
+    private string toHashtString;
+    private byte[] toHashtBytes;
+    private Stream toHashStream;
+
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        this.toHashtBytes = Encoding.UTF8.GetBytes("toEncrypt");
+        this.toHashtString = Convert.ToBase64String(this.toHashtBytes);
+        this.toHashStream = new MemoryStream(this.toHashtBytes);
+    }
+
+    [TestMethod]
+    public async Task HashString()
+    {
+        var hash = await this.hashingService.Hash(this.toHashtString).ConfigureAwait(false);
+        hash.Should().BeOfType<string>();
+    }
+
+    [TestMethod]
+    public async Task HashBytes()
+    {
+        var hash = await this.hashingService.Hash(this.toHashtBytes).ConfigureAwait(false);
+        hash.Should().BeOfType<byte[]>();
+    }
+
+    [TestMethod]
+    public async Task HashStream()
+    {
+        var hash = await this.hashingService.Hash(this.toHashStream).ConfigureAwait(false);
+        hash.Should().BeAssignableTo<Stream>();
+    }
+}

SystemExtensions.NetStandard.Security.Tests/SystemExtensions.NetStandard.Security.Tests.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.10" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
+    <PackageReference Include="coverlet.collector" Version="3.1.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SystemExtensions.NetStandard.Security\SystemExtensions.NetStandard.Security.csproj" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.Security/Encryption/AesEncrypter.cs

@@ -0,0 +1,226 @@
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+using System.Security.Utilities;
+
+namespace System.Security.Encryption;
+
+public sealed class AesEncrypter : ISymmetricEncrypter, IDisposable
+{
+    private readonly Aes aes;
+
+    public AesEncrypter()
+    {
+        this.aes = Aes.Create();
+    }
+
+    public AesEncrypter(Aes aes)
+    {
+        this.aes = aes;
+    }
+
+    public async Task<string> Decrypt(string key, string iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var decryptedStream = await this.DecryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToString(decryptedStream);
+    }
+
+    public async Task<string> Decrypt(byte[] key, byte[] iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var decryptedStream = await this.DecryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToString(decryptedStream);
+    }
+
+    public async Task<byte[]> Decrypt(string key, string iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var decryptedStream = await this.DecryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToBytes(decryptedStream);
+    }
+
+    public async Task<byte[]> Decrypt(byte[] key, byte[] iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var decryptedStream = await this.DecryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToBytes(decryptedStream);
+    }
+
+    public async Task<Stream> Decrypt(string key, string iv, Stream value)
+    {
+        return await this.DecryptInternal(StringToBytes(key), StringToBytes(iv), value).ConfigureAwait(false);
+    }
+
+    public async Task<Stream> Decrypt(byte[] key, byte[] iv, Stream value)
+    {
+        return await this.DecryptInternal(key, iv, value).ConfigureAwait(false);
+    }
+
+    public async Task<string> Encrypt(string key, string iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var encryptedStream = await this.EncryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToString(encryptedStream);
+    }
+
+    public async Task<string> Encrypt(byte[] key, byte[] iv, string value)
+    {
+        using var valueStream = BytesToStream(StringToBytes(value));
+        using var encryptedStream = await this.EncryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToString(encryptedStream);
+    }
+
+    public async Task<byte[]> Encrypt(string key, string iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var encryptedStream = await this.EncryptInternal(StringToBytes(key), StringToBytes(iv), valueStream).ConfigureAwait(false);
+        return StreamToBytes(encryptedStream);
+    }
+
+    public async Task<byte[]> Encrypt(byte[] key, byte[] iv, byte[] value)
+    {
+        using var valueStream = BytesToStream(value);
+        using var encryptedStream = await this.EncryptInternal(key, iv, valueStream).ConfigureAwait(false);
+        return StreamToBytes(encryptedStream);
+    }
+
+    public async Task<Stream> Encrypt(string key, string iv, Stream value)
+    {
+        return value is null
+            ? throw new ArgumentNullException(nameof(value))
+            : await this.EncryptInternal(StringToBytes(key), StringToBytes(iv), value).ConfigureAwait(false);
+    }
+
+    public async Task<Stream> Encrypt(byte[] key, byte[] iv, Stream value)
+    {
+        return value is null
+            ? throw new ArgumentNullException(nameof(value))
+            : await this.EncryptInternal(key, iv, value).ConfigureAwait(false);
+    }
+
+    public Stream GetEncryptionStream(string key, string iv, Stream outStream)
+    {
+        return this.GetEncryptionStreamInternal(StringToBytes(key), StringToBytes(iv), outStream);
+    }
+
+    public Stream GetEncryptionStream(byte[] key, byte[] iv, Stream outStream)
+    {
+        return this.GetEncryptionStreamInternal(key, iv, outStream);
+    }
+
+    public Stream GetDecryptionStream(string key, string iv, Stream inStream)
+    {
+        return this.GetDecryptionStreamInternal(StringToBytes(key), StringToBytes(iv), inStream);
+    }
+
+    public Stream GetDecryptionStream(byte[] key, byte[] iv, Stream inStream)
+    {
+        return this.GetDecryptionStreamInternal(key, iv, inStream);
+    }
+
+    private async Task<Stream> EncryptInternal(byte[] key, byte[] iv, Stream toEncryptStream)
+    {
+        if (key.Length < 32)
+        {
+            throw new ArgumentException($"{nameof(key)} must be at least 32 bytes");
+        }
+
+        if (iv.Length < 16)
+        {
+            throw new ArgumentException($"{nameof(iv)} must be at least 16 bytes");
+        }
+
+        key = key.Take(32).ToArray();
+        iv = iv.Take(16).ToArray();
+
+
+        var encryptedMemoryStream = new MemoryStream();
+        using var cryptoStream = this.GetEncryptionStreamInternal(key, iv, encryptedMemoryStream);
+        await toEncryptStream.CopyToAsync(cryptoStream).ConfigureAwait(false);
+        if (!cryptoStream.HasFlushedFinalBlock)
+        {
+            cryptoStream.FlushFinalBlock();
+        }
+
+        encryptedMemoryStream.Position = 0;
+        return encryptedMemoryStream;
+    }
+
+    private async Task<Stream> DecryptInternal(byte[] key, byte[] iv, Stream toDecryptStream)
+    {
+        if (key.Length < 32)
+        {
+            throw new ArgumentException($"{nameof(key)} must be at least 32 bytes");
+        }
+
+        if (iv.Length < 16)
+        {
+            throw new ArgumentException($"{nameof(iv)} must be at least 16 bytes");
+        }
+
+        key = key.Take(32).ToArray();
+        iv = iv.Take(16).ToArray();
+
+
+        var decryptedMemoryStream = new MemoryStream();
+        using var cryptoStream = this.GetDecryptionStreamInternal(key, iv, toDecryptStream);
+        await cryptoStream.CopyToAsync(decryptedMemoryStream).ConfigureAwait(false);
+        if (!cryptoStream.HasFlushedFinalBlock)
+        {
+            cryptoStream.FlushFinalBlock();
+        }
+
+        decryptedMemoryStream.Position = 0;
+        return decryptedMemoryStream;
+    }
+
+    private CryptoStream GetEncryptionStreamInternal(byte[] key, byte[] iv, Stream encryptedStream)
+    {
+        var crypto = this.aes.CreateEncryptor(key, iv);
+        var cryptoStream = new NotClosingCryptoStream(encryptedStream, crypto, CryptoStreamMode.Write);
+        return cryptoStream;
+    }
+
+    private CryptoStream GetDecryptionStreamInternal(byte[] key, byte[] iv, Stream encryptedStream)
+    {
+        var crypto = this.aes.CreateDecryptor(key, iv);
+        var cryptoStream = new NotClosingCryptoStream(encryptedStream, crypto, CryptoStreamMode.Read);
+        return cryptoStream;
+    }
+
+    private static byte[] StreamToBytes(Stream value)
+    {
+        value.Position = 0;
+        var buffer = new byte[1024];
+        using var ms = new MemoryStream();
+        var read = -1;
+        do
+        {
+            read = value.Read(buffer, 0, buffer.Length);
+            ms.Write(buffer, 0, read);
+        } while (read > 0);
+        return ms.ToArray();
+    }
+
+    private static string StreamToString(Stream value)
+    {
+        return Convert.ToBase64String(StreamToBytes(value));
+    }
+
+    private static byte[] StringToBytes(string value)
+    {
+        return Convert.FromBase64String(value);
+    }
+
+    private static Stream BytesToStream(byte[] value)
+    {
+        return new MemoryStream(value);
+    }
+
+    public void Dispose()
+    {
+        this.aes.Dispose();
+    }
+}

SystemExtensions.NetStandard.Security/Encryption/ISymmetricEncrypter.cs

@@ -0,0 +1,24 @@
+using System.IO;
+using System.Threading.Tasks;
+
+namespace System.Security.Encryption;
+
+public interface ISymmetricEncrypter
+{
+    Stream GetEncryptionStream(string key, string iv, Stream outStream);
+    Stream GetEncryptionStream(byte[] key, byte[] iv, Stream outStream);
+    Stream GetDecryptionStream(string key, string iv, Stream inStream);
+    Stream GetDecryptionStream(byte[] key, byte[] iv, Stream inStream);
+    Task<string> Encrypt(string key, string iv, string value);
+    Task<string> Encrypt(byte[] key, byte[] iv, string value);
+    Task<byte[]> Encrypt(string key, string iv, byte[] value);
+    Task<byte[]> Encrypt(byte[] key, byte[] iv, byte[] value);
+    Task<Stream> Encrypt(string key, string iv, Stream value);
+    Task<Stream> Encrypt(byte[] key, byte[] iv, Stream value);
+    Task<string> Decrypt(string key, string iv, string value);
+    Task<string> Decrypt(byte[] key, byte[] iv, string value);
+    Task<byte[]> Decrypt(string key, string iv, byte[] value);
+    Task<byte[]> Decrypt(byte[] key, byte[] iv, byte[] value);
+    Task<Stream> Decrypt(string key, string iv, Stream value);
+    Task<Stream> Decrypt(byte[] key, byte[] iv, Stream value);
+}

SystemExtensions.NetStandard.Security/Encryption/SecureString.cs

@@ -0,0 +1,101 @@
+using System.Security.Cryptography;
+using System.Text;
+
+namespace System.Security.Encryption;
+
+public sealed class SecureString
+{
+    private static byte[] optionalEntropy;
+    private byte[] encryptedValue;
+
+    public string Value {
+        get => this.encryptedValue is not null ? Encoding.UTF8.GetString(ProtectedData.Unprotect(this.encryptedValue, optionalEntropy, DataProtectionScope.CurrentUser)) : null;
+        private set => this.encryptedValue = ProtectedData.Protect(Encoding.UTF8.GetBytes(value), optionalEntropy, DataProtectionScope.CurrentUser);
+    }
+
+    public SecureString(string value)
+    {
+        this.Value = value;
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is string)
+        {
+            return this == (obj as string);
+        }
+        else if (obj is SecureString)
+        {
+            return this == (obj as SecureString);
+        }
+        else
+        {
+            return base.Equals(obj);
+        }
+    }
+    public override int GetHashCode()
+    {
+        return this.Value.GetHashCode();
+    }
+    public override string ToString()
+    {
+        return this.Value;
+    }
+
+    public static readonly SecureString Empty = new(string.Empty);
+    public static implicit operator string(SecureString ss) => ss is null ? string.Empty : ss.Value;
+    public static implicit operator SecureString(string s) => new(s);
+    public static SecureString operator +(SecureString ss1, SecureString ss2)
+    {
+        if (ss1 is null)
+        {
+            throw new ArgumentNullException(nameof(ss1));
+        }
+
+        if (ss2 is null)
+        {
+            throw new ArgumentNullException(nameof(ss2));
+        }
+
+        return new SecureString(ss1.Value + ss2.Value);
+    }
+    public static SecureString operator +(SecureString ss1, string s2)
+    {
+        if (ss1 is null)
+        {
+            throw new ArgumentNullException(nameof(ss1));
+        }
+
+        return new SecureString(ss1.Value + s2);
+    }
+    public static SecureString operator +(SecureString ss1, char c)
+    {
+        if (ss1 is null)
+        {
+            throw new ArgumentNullException(nameof(ss1));
+        }
+
+        return new SecureString(ss1.Value + c);
+    }
+    public static bool operator ==(SecureString ss1, SecureString ss2)
+    {
+        return ss1?.Value == ss2?.Value;
+    }
+    public static bool operator !=(SecureString ss1, SecureString ss2)
+    {
+        return !(ss1 == ss2);
+    }
+    public static bool operator ==(SecureString ss1, string s2)
+    {
+        return ss1?.Value == s2;
+    }
+    public static bool operator !=(SecureString ss1, string s2)
+    {
+        return !(ss1?.Value == s2);
+    }
+
+    public static void AddOptionalEntropy(byte[] entropy)
+    {
+        optionalEntropy = entropy;
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/IHashingService.cs

@@ -0,0 +1,11 @@
+using System.IO;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public interface IHashingService
+{
+    Task<string> Hash(string raw);
+    Task<byte[]> Hash(byte[] raw);
+    Task<Stream> Hash(Stream raw);
+}

SystemExtensions.NetStandard.Security/Hashing/IPasswordHashingService.cs

@@ -0,0 +1,46 @@
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public interface IPasswordHashingService
+{
+    /// <summary>
+    /// Hash provided raw password and return the hashed value.
+    /// </summary>
+    /// <param name="raw">Base64 encoded password.</param>
+    /// <param name="salt">Base64 encoded salt to be used for hashing.</param>
+    /// <param name="length">Length of the resulting hash.</param>
+    /// <param name="iterations">Number of hashing iterations to be performed.</param>
+    /// <remarks>
+    /// The length of the hash will vary due to the base64 encoding of the resulting hash.
+    /// </remarks>
+    /// <returns>Base64 encoded hashed password.</returns>
+    Task<string> Hash(string raw, string salt, int length, int iterations);
+    /// <summary>
+    /// Hash provided raw password and return the hashed value.
+    /// </summary>
+    /// <param name="raw">Password to be hashed.</param>
+    /// <param name="salt">Salt to be used for hashing.</param>
+    /// <param name="length">Length of the resulting hash.</param>
+    /// <param name="iterations">Number of hashing iterations to be performed.</param>
+    /// <returns>Hashed password.</returns>
+    Task<byte[]> Hash(byte[] raw, byte[] salt, int length, int iterations);
+    /// <summary>
+    /// Verify provided password against a hashed password.
+    /// </summary>
+    /// <param name="hash">Base64 encoding of the previously hashed password.</param>
+    /// <param name="password">Base64 encoding of the password to be verified.</param>
+    /// <param name="salt">Salt used to hash the previous password.</param>
+    /// <param name="iterations">Number of iterations used to hash the previous password.</param>
+    /// <returns>Returns true if password matches the previously hashed password. Otherwise returns false.</returns>
+    Task<bool> VerifyPassword(string hash, string password, string salt, int iterations);
+    /// <summary>
+    /// Verify provided password against a hashed password.
+    /// </summary>
+    /// <param name="hash">Previously hashed password.</param>
+    /// <param name="password">Password to be verified.</param>
+    /// <param name="salt">Salt used to hash the previous password.</param>
+    /// <param name="iterations">Number of iterations used to hash the previous password.</param>
+    /// <returns>Returns true if password matches the previously hashed password. Otherwise returns false.</returns>
+    Task<bool> VerifyPassword(byte[] hash, byte[] password, byte[] salt, int iterations);
+}

SystemExtensions.NetStandard.Security/Hashing/Rfc2898DeriveBytesPasswordHashingService.cs

@@ -0,0 +1,100 @@
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public sealed class Rfc2898DeriveBytesPasswordHashingService : IPasswordHashingService
+{
+    private const int MinimumIterations = 10000;
+    private const int MinimumHashLength = 32;
+
+    public Rfc2898DeriveBytesPasswordHashingService()
+    {
+    }
+
+    public async Task<string> Hash(string raw, string salt, int length, int iterations)
+    {
+        this.ValidateHashArguments(raw, salt, length, iterations);
+
+        var rawBytes = Convert.FromBase64String(raw);
+        var saltBytes = Convert.FromBase64String(salt);
+        var hashBytes = await this.HashInternal(rawBytes, saltBytes, length, iterations);
+        return Convert.ToBase64String(hashBytes);
+    }
+    public Task<byte[]> Hash(byte[] raw, byte[] salt, int length, int iterations)
+    {
+        this.ValidateHashArguments(raw, salt, length, iterations);
+
+        return this.HashInternal(raw, salt, length, iterations);
+    }
+    public Task<bool> VerifyPassword(string hash, string password, string salt, int iterations)
+    {
+        this.ValidateVerifyArguments(hash, password, salt, iterations);
+        var hashBytes = Convert.FromBase64String(hash);
+        var saltBytes = Convert.FromBase64String(salt);
+        var passwordBytes = Convert.FromBase64String(password);
+        return this.VerifyPasswordInternal(hashBytes, passwordBytes, saltBytes, iterations);
+    }
+    public Task<bool> VerifyPassword(byte[] hash, byte[] password, byte[] salt, int iterations)
+    {
+        this.ValidateVerifyArguments(hash, password, salt, iterations);
+        return this.VerifyPasswordInternal(hash, password, salt, iterations);
+    }
+
+    private void ValidateHashArguments(object raw, object salt, int length, int iterations)
+    {
+        _ = raw ?? throw new ArgumentNullException(nameof(raw));
+        _ = salt ?? throw new ArgumentNullException(nameof(salt));
+
+        if (iterations < MinimumIterations)
+        {
+            throw new InvalidOperationException($"Unable to perform secure hash. Iteration count must be over {MinimumIterations}");
+        }
+
+        if (length < MinimumHashLength)
+        {
+            throw new InvalidOperationException($"Unable to perform secure hash. Hash length must be over {MinimumHashLength}");
+        }
+    }
+    private void ValidateVerifyArguments(object hash, object password, object salt, int iterations)
+    {
+        _ = hash ?? throw new ArgumentNullException(nameof(hash));
+        _ = salt ?? throw new ArgumentNullException(nameof(salt));
+        _ = password ?? throw new ArgumentNullException(nameof(password));
+
+        if (iterations < MinimumIterations)
+        {
+            throw new InvalidOperationException($"Unable to verify hash. Iteration count must be over {MinimumIterations}");
+        }
+    }
+    private Task<byte[]> HashInternal(byte[] raw, byte[] salt, int length, int iterations)
+    {
+        using var pbkdf2 = new Rfc2898DeriveBytes(raw, salt, iterations);
+        var hash = pbkdf2.GetBytes(length);
+        return Task.FromResult(hash);
+    }
+    private Task<bool> VerifyPasswordInternal(byte[] hash, byte[] password, byte[] salt, int iterations)
+    {
+        using var pbkdf2 = new Rfc2898DeriveBytes(password, salt, iterations);
+        var hashToVerify = pbkdf2.GetBytes(hash.Length);
+        var lengthToVerify = Math.Max(hash.Length, hashToVerify.Length);
+        var match = true;
+        if (lengthToVerify <= 0)
+        {
+            return Task.FromResult(false);
+        }
+
+        for(var i = 0; i < lengthToVerify; i++)
+        {
+            if (i < hash.Length && i < hashToVerify.Length)
+            {
+                if (hashToVerify[i].Equals(hash[i]) is false)
+                {
+                    match = false;
+                }
+            }
+        }
+
+        return Task.FromResult(match && hash.Length.Equals(hashToVerify.Length));
+    }
+}

SystemExtensions.NetStandard.Security/Hashing/Sha256HashingService.cs

@@ -0,0 +1,61 @@
+using System.IO;
+using System.Security.Cryptography;
+using System.Threading.Tasks;
+
+namespace System.Security.Hashing;
+
+public sealed class Sha256HashingService : IHashingService
+{
+    public async Task<string> Hash(string raw)
+    {
+        using var rawStream = BytesToStream(StringToBytes(raw));
+        using var hashedStream = await HashInternal(rawStream).ConfigureAwait(false);
+        return StreamToString(hashedStream);
+    }
+    public async Task<byte[]> Hash(byte[] raw)
+    {
+        using var rawStream = BytesToStream(raw);
+        using var hashedStream = await HashInternal(rawStream).ConfigureAwait(false);
+        return StreamToBytes(hashedStream);
+    }
+    public async Task<Stream> Hash(Stream raw)
+    {
+        return await HashInternal(raw);
+    }
+
+    private static byte[] StreamToBytes(Stream value)
+    {
+        value.Position = 0;
+        var buffer = new byte[1024];
+        using var ms = new MemoryStream();
+        var read = -1;
+        do
+        {
+            read = value.Read(buffer, 0, buffer.Length);
+            ms.Write(buffer, 0, read);
+        } while (read > 0);
+        return ms.ToArray();
+    }
+    private static string StreamToString(Stream value)
+    {
+        return Convert.ToBase64String(StreamToBytes(value));
+    }
+    private static byte[] StringToBytes(string value)
+    {
+        return Convert.FromBase64String(value);
+    }
+    private static Stream BytesToStream(byte[] value)
+    {
+        return new MemoryStream(value);
+    }
+    private static async Task<Stream> HashInternal(Stream raw)
+    {
+        if (raw is null)
+        {
+            throw new ArgumentNullException(nameof(raw));
+        }
+
+        using var sha256 = SHA256.Create();
+        return await Task.Run(() => new MemoryStream(sha256.ComputeHash(raw)));
+    }
+}

SystemExtensions.NetStandard.Security/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Macocian Alexandru Victor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

SystemExtensions.NetStandard.Security/Rng/CryptoRngProvider.cs

@@ -0,0 +1,58 @@
+using System.Security.Cryptography;
+
+namespace System.Security.Rng;
+
+public sealed class CryptoRngProvider : ICryptoRngProvider, IDisposable
+{
+    private readonly RNGCryptoServiceProvider rngProvider;
+    private bool disposedValue;
+
+    public CryptoRngProvider()
+    {
+        this.rngProvider = new RNGCryptoServiceProvider();
+    }
+    public CryptoRngProvider(CspParameters cspParams)
+    {
+        this.rngProvider = new RNGCryptoServiceProvider(cspParams);
+    }
+
+
+    public void GetBytes(byte[] data)
+    {
+        this.rngProvider.GetBytes(data);
+    }
+    public void GetNonZeroBytes(byte[] data)
+    {
+        this.rngProvider.GetNonZeroBytes(data);
+    }
+    public byte[] GetBytes(int byteCount)
+    {
+        var bytes = new byte[byteCount];
+        this.GetBytes(bytes);
+        return bytes;
+    }
+    public byte[] GetNonZeroBytes(int byteCount)
+    {
+        var bytes = new byte[byteCount];
+        this.GetNonZeroBytes(bytes);
+        return bytes;
+    }
+
+    private void Dispose(bool disposing)
+    {
+        if (!this.disposedValue)
+        {
+            if (disposing)
+            {
+                this.rngProvider.Dispose();
+            }
+
+            this.disposedValue = true;
+        }
+    }
+    public void Dispose()
+    {
+        this.Dispose(disposing: true);
+        GC.SuppressFinalize(this);
+    }
+}

SystemExtensions.NetStandard.Security/Rng/ICryptoRngProvider.cs

@@ -0,0 +1,27 @@
+namespace System.Security.Rng;
+
+public interface ICryptoRngProvider
+{
+    /// <summary>
+    /// Populate provided array of bytes with cryptographically secure random bytes.
+    /// </summary>
+    /// <param name="data">Array of bytes to be populated.</param>
+    public void GetBytes(byte[] data);
+    /// <summary>
+    /// Return an array of cryptographically secure random bytes.
+    /// </summary>
+    /// <param name="byteCount">Length of the returned array.</param>
+    /// <returns>Array containing cryptographically secure random values.</returns>
+    public byte[] GetBytes(int byteCount);
+    /// <summary>
+    /// Populate provided array of bytes with cryptographically secure random non-zero bytes.
+    /// </summary>
+    /// <param name="data">Array of bytes to be populated.</param>
+    public void GetNonZeroBytes(byte[] data);
+    /// <summary>
+    /// Return an array of cryptographically secure random non-zero bytes.
+    /// </summary>
+    /// <param name="byteCount">Length of the returned array.</param>
+    /// <returns>Array containing cryptographically secure random non-zero values.</returns>
+    public byte[] GetNonZeroBytes(int byteCount);
+}

SystemExtensions.NetStandard.Security/SystemExtensions.NetStandard.Security.csproj

@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+    <LangVersion>latest</LangVersion>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
+    <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <RootNamespace>System</RootNamespace>
+    <Version>1.2.5</Version>
+    <Authors>Alexandru Macocian</Authors>
+    <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+    <Description>Security extensions for the System namespace</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="../LICENSE">
+      <Pack>True</Pack>
+      <PackagePath></PackagePath>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="6.0.0" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard.Security/Utilities/NotClosingCryptoStream.cs

@@ -0,0 +1,22 @@
+using System.IO;
+using System.Security.Cryptography;
+
+namespace System.Security.Utilities;
+
+internal sealed class NotClosingCryptoStream : CryptoStream
+{
+    public NotClosingCryptoStream(Stream stream, ICryptoTransform transform, CryptoStreamMode mode)
+        : base(stream, transform, mode)
+    {
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if (!this.HasFlushedFinalBlock)
+        {
+            this.FlushFinalBlock();
+        }
+
+        base.Dispose(false);
+    }
+}

SystemExtensions.NetStandard/Collections/AVLTree.cs

@@ -0,0 +1,402 @@
+using System.Collections.Generic;
+
+namespace System.Collections.Generic;
+
+/// <summary>
+/// AVL tree implementation.
+/// Thanks to Karim Oumghar for the implementation example.
+/// Read on https://simpledevcode.wordpress.com/2014/09/16/avl-tree-in-c/
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class AVLTree<T> : ICollection<T> where T : IComparable<T>
+{
+    #region Fields
+    [Serializable]
+    private class AVLNode<TKey>
+    {
+        public TKey Value;
+        public AVLNode<TKey> Left;
+        public AVLNode<TKey> Right;
+        public AVLNode(TKey value)
+        {
+            this.Value = value;
+        }
+    }
+    AVLNode<T> root;
+    private int count = 0;
+    private readonly bool isReadOnly = false;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Count of items currently stored in the tree.
+    /// </summary>
+    public int Count
+    {
+        get
+        {
+            return this.count;
+        }
+    }
+    /// <summary>
+    /// True if the collection is readonly. False otherwise.
+    /// </summary>
+    public bool IsReadOnly => this.isReadOnly;
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Initializes a new instance of an AVLTree collection.
+    /// </summary>
+    public AVLTree()
+    {
+
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds the value to the tree.
+    /// </summary>
+    /// <param name="value">Value to be added to the tree.</param>
+    public void Add(T value)
+    {
+        this.count++;
+        var newItem = new AVLNode<T>(value);
+        if (this.root == null)
+        {
+            this.root = newItem;
+        }
+        else
+        {
+            this.root = this.RecursiveInsertion(this.root, newItem);
+        }
+    }
+    /// <summary>
+    /// Checks if the key is contained into the tree.
+    /// </summary>
+    /// <param name="value">Value to be checked if present in the tree.</param>
+    /// <returns>True if the value is in the tree.</returns>
+    public bool Contains(T value)
+    {
+        var node = this.Find(value, this.root);
+        if (node == null)
+        {
+            return false;
+        }
+
+        if (node.Value.CompareTo(value) == 0)
+        {
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+    /// <summary>
+    /// Removes the specified value from the tree.
+    /// </summary>
+    /// <param name="value">Value to be deleted.</param>
+    public bool Remove(T value)
+    {
+        this.root = this.Delete(this.root, value);
+        return true;
+    }
+    /// <summary>
+    /// Clears the tree.
+    /// </summary>
+    public void Clear()
+    {
+        var queue = new Queue<AVLNode<T>>();
+        queue.Enqueue(this.root);
+
+        while (queue.Count > 0)
+        {
+            var currentNode = queue.Dequeue();
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+                currentNode.Left = null;
+                this.count--;
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+                currentNode.Right = null;
+                this.count--;
+            }
+        }
+
+        this.root = null;
+        this.count--;
+    }
+    /// <summary>
+    /// Copies the tree onto the provided array.
+    /// </summary>
+    /// <param name="array">Array to store the values in the tree.</param>
+    /// <param name="arrayIndex">Starting index of the provided array.</param>
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        var queue = new Queue<AVLNode<T>>();
+        queue.Enqueue(this.root);
+        while (queue.Count > 0)
+        {
+            var currentNode = queue.Dequeue();
+            array[arrayIndex++] = currentNode.Value;
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+            }
+        }
+    }
+    /// <summary>
+    /// Enumerator that iterates over the tree.
+    /// </summary>
+    /// <returns></returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.GetEnumerator(this.root);
+    }
+    /// <summary>
+    /// Copies the tree structure into an array.
+    /// </summary>
+    /// <returns>Array containing the values contained in the tree.</returns>
+    public T[] ToArray()
+    {
+        var array = new T[this.count];
+        this.CopyTo(array, 0);
+        return array;
+    }
+    #endregion
+    #region Private Methods
+    private AVLNode<T> RecursiveInsertion(AVLNode<T> current, AVLNode<T> n)
+    {
+        if (current == null)
+        {
+            current = n;
+            return current;
+        }
+        else if (n.Value.CompareTo(current.Value) < 0)
+        {
+            current.Left = this.RecursiveInsertion(current.Left, n);
+            current = this.BalanceTree(current);
+        }
+        else if (n.Value.CompareTo(current.Value) > 0)
+        {
+            current.Right = this.RecursiveInsertion(current.Right, n);
+            current = this.BalanceTree(current);
+        }
+
+        return current;
+    }
+    private AVLNode<T> BalanceTree(AVLNode<T> current)
+    {
+        var b_factor = this.BalanceFactor(current);
+        if (b_factor > 1)
+        {
+            if (this.BalanceFactor(current.Left) > 0)
+            {
+                current = this.RotateLL(current);
+            }
+            else
+            {
+                current = this.RotateLR(current);
+            }
+        }
+        else if (b_factor < -1)
+        {
+            if (this.BalanceFactor(current.Right) > 0)
+            {
+                current = this.RotateRL(current);
+            }
+            else
+            {
+                current = this.RotateRR(current);
+            }
+        }
+
+        return current;
+    }
+    private AVLNode<T> Delete(AVLNode<T> current, T target)
+    {
+        AVLNode<T> parent;
+        if (current == null)
+        { return null; }
+        else
+        {
+            //left subtree
+            if (target.CompareTo(current.Value) < 0)
+            {
+                current.Left = this.Delete(current.Left, target);
+                if (this.BalanceFactor(current) == -2)//here
+                {
+                    if (this.BalanceFactor(current.Right) <= 0)
+                    {
+                        current = this.RotateRR(current);
+                    }
+                    else
+                    {
+                        current = this.RotateRL(current);
+                    }
+                }
+            }
+            //right subtree
+            else if (target.CompareTo(current.Value) > 0)
+            {
+                current.Right = this.Delete(current.Right, target);
+                if (this.BalanceFactor(current) == 2)
+                {
+                    if (this.BalanceFactor(current.Left) >= 0)
+                    {
+                        current = this.RotateLL(current);
+                    }
+                    else
+                    {
+                        current = this.RotateLR(current);
+                    }
+                }
+            }
+            //if target is found
+            else
+            {
+                this.count--;
+                if (current.Right != null)
+                {
+                    //delete its inorder successor
+                    parent = current.Right;
+                    while (parent.Left != null)
+                    {
+                        parent = parent.Left;
+                    }
+
+                    current.Value = parent.Value;
+                    current.Right = this.Delete(current.Right, parent.Value);
+                    if (this.BalanceFactor(current) == 2)//rebalancing
+                    {
+                        if (this.BalanceFactor(current.Left) >= 0)
+                        {
+                            current = this.RotateLL(current);
+                        }
+                        else { current = this.RotateLR(current); }
+                    }
+                }
+                else
+                {   //if current.left != null
+                    return current.Left;
+                }
+            }
+        }
+
+        return current;
+    }
+    private AVLNode<T> Find(T target, AVLNode<T> current)
+    {
+        if (current == null)
+        {
+            return null;
+        }
+
+        if (target.CompareTo(current.Value) < 0)
+        {
+            if (target.CompareTo(current.Value) == 0)
+            {
+                return current;
+            }
+            else
+            {
+                return this.Find(target, current.Left);
+            }
+        }
+        else
+        {
+            if (target.CompareTo(current.Value) == 0)
+            {
+                return current;
+            }
+            else
+            {
+                return this.Find(target, current.Right);
+            }
+        }
+    }
+    private int Max(int l, int r)
+    {
+        return l > r ? l : r;
+    }
+    private int GetHeight(AVLNode<T> current)
+    {
+        var height = 0;
+        if (current != null)
+        {
+            var l = this.GetHeight(current.Left);
+            var r = this.GetHeight(current.Right);
+            var m = this.Max(l, r);
+            height = m + 1;
+        }
+
+        return height;
+    }
+    private int BalanceFactor(AVLNode<T> current)
+    {
+        var l = this.GetHeight(current.Left);
+        var r = this.GetHeight(current.Right);
+        var b_factor = l - r;
+        return b_factor;
+    }
+    private AVLNode<T> RotateRR(AVLNode<T> parent)
+    {
+        var pivot = parent.Right;
+        parent.Right = pivot.Left;
+        pivot.Left = parent;
+        return pivot;
+    }
+    private AVLNode<T> RotateLL(AVLNode<T> parent)
+    {
+        var pivot = parent.Left;
+        parent.Left = pivot.Right;
+        pivot.Right = parent;
+        return pivot;
+    }
+    private AVLNode<T> RotateLR(AVLNode<T> parent)
+    {
+        var pivot = parent.Left;
+        parent.Left = this.RotateRR(pivot);
+        return this.RotateLL(parent);
+    }
+    private AVLNode<T> RotateRL(AVLNode<T> parent)
+    {
+        var pivot = parent.Right;
+        parent.Right = this.RotateLL(pivot);
+        return this.RotateRR(parent);
+    }
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    private IEnumerator<T> GetEnumerator(AVLNode<T> rootNode)
+    {
+        var queue = new Queue<AVLNode<T>>();
+        queue.Enqueue(rootNode);
+
+        while (queue.Count > 0)
+        {
+            var currentNode = queue.Dequeue();
+            yield return currentNode.Value;
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+            }
+        }
+    }
+    #endregion
+}

SystemExtensions.NetStandard/Collections/BinaryHeap.cs

@@ -0,0 +1,219 @@
+using System.Linq;
+
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Binary heap implementation.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class BinaryHeap<T> : IEnumerable<T> where T : IComparable<T>
+{
+    #region Fields
+    T[] items;
+    private int capacity;
+    private int count;
+    private readonly int initialCapacity;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Minimum value from the heap.
+    /// </summary>
+    public T Min
+    {
+        get
+        {
+            return this.items[1];
+        }
+    }
+    /// <summary>
+    /// Maximum value from the heap.
+    /// </summary>
+    public T Max
+    {
+        get
+        {
+            return this.items[this.count];
+        }
+    }
+    /// <summary>
+    /// Capacity of the heap.
+    /// </summary>
+    public int Capacity
+    {
+        get => this.capacity;
+        set
+        {
+            if (value > this.capacity)
+            {
+                Array.Resize(ref this.items, value);
+                this.capacity = value;
+            }
+        }
+    }
+    /// <summary>
+    /// Number of elements in the heap.
+    /// </summary>
+    public int Count { get => this.count; }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for a binary heap data structure.
+    /// </summary>
+    public BinaryHeap()
+    {
+        this.capacity = 10;
+        this.initialCapacity = this.capacity;
+        this.items = new T[this.capacity];
+    }
+    /// <summary>
+    /// Constructor for a binary heap data structure.
+    /// </summary>
+    /// <param name="capacity">Initial capacity of the heap. Used for initial alocation of the array.</param>
+    public BinaryHeap(int capacity)
+    {
+        this.capacity = capacity;
+        this.initialCapacity = capacity;
+        this.items = new T[capacity];
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds value to the queue.
+    /// </summary>
+    /// <param name="value">Value to be added.</param>
+    public void Add(T value)
+    {
+        if (this.count == this.Capacity - 1)
+        {
+            this.Capacity = 2 * this.Capacity;
+        }
+
+        var position = ++this.count;
+        for (; position > 1 && value.CompareTo(this.items[position / 2]) < 0; position /= 2)
+        {
+            this.items[position] = this.items[position / 2];
+        }
+
+        this.items[position] = value;
+    }
+    /// <summary>
+    /// Removes the item at the root. Throws exception if there are no items in the heap.
+    /// </summary>
+    /// <returns>Value removed.</returns>
+    public T Remove()
+    {
+        if (this.count == 0)
+        {
+            throw new IndexOutOfRangeException("Heap is empty!");
+        }
+
+        var min = this.items[1];
+        this.items[1] = this.items[this.count--];
+        this.BubbleDown(1);
+        return min;
+    }
+    /// <summary>
+    /// Peeks at the item at the root. Throws exception if there are no items in the heap.
+    /// </summary>
+    /// <returns></returns>
+    public T Peek()
+    {
+        if (this.count == 0)
+        {
+            throw new IndexOutOfRangeException("Heap is empty!");
+        }
+
+        var min = this.items[1];
+        return min;
+    }
+    /// <summary>
+    /// Return the heap structure as an array
+    /// </summary>
+    /// <returns>Array with values sorted as in heap</returns>
+    public T[] ToArray()
+    {
+        var newArray = new T[this.count];
+        Array.Copy(this.items, 1, newArray, 0, this.count);
+        return newArray;
+    }
+    /// <summary>
+    /// Determines whether the heap contains specified value
+    /// </summary>
+    /// <param name="value">Value to locate in the heap</param>
+    /// <returns></returns>
+    public bool Contains(T value)
+    {
+        return this.items.Contains(value);
+    }
+    /// <summary>
+    /// Clears the heap
+    /// </summary>
+    public void Clear()
+    {
+        this.count = 0;
+    }
+    /// <summary>
+    /// Clears the heap.
+    /// </summary>
+    /// <param name="completeClear">Specifies if the underlying array should be cleared as well</param>
+    public void Clear(bool completeClear)
+    {
+        this.count = 0;
+        if (completeClear)
+        {
+            this.capacity = this.initialCapacity;
+            this.items = new T[this.initialCapacity];
+        }
+    }
+    /// <summary>
+    /// Returns an enumerator that iterates over the heap.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the heap.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        for (var i = 0; i < this.count; i++)
+        {
+            yield return this.items[i + 1];
+        }
+    }
+    #endregion
+    #region Private Methods
+    /// <summary>
+    /// Bubble the specified element to its position
+    /// </summary>
+    /// <param name="index">Index of element to bubble</param>
+    private void BubbleDown(int index)
+    {
+        var temp = this.items[index];
+        int childIndex;
+        for (; 2 * index <= this.count; index = childIndex)
+        {
+            childIndex = 2 * index;
+            if (childIndex != this.Count && this.items[childIndex].CompareTo(this.items[childIndex + 1]) > 0)
+            {
+                childIndex++;
+            }
+
+            if (temp.CompareTo(this.items[childIndex]) > 0)
+            {
+                this.items[index] = this.items[childIndex];
+            }
+            else
+            {
+                break;
+            }
+        }
+
+        this.items[index] = temp;
+    }
+    /// <summary>
+    /// Implementation of IEnumerator.
+    /// </summary>
+    /// <returns>Enumerator over the array.</returns>
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
+}

SystemExtensions.NetStandard/Collections/FibonacciHeap.cs

@@ -0,0 +1,579 @@
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Fibonacci Heap implementation.
+/// </summary>
+/// <typeparam name="T">Provided type</typeparam>
+[Serializable]
+public sealed class FibonacciHeap<T> : IEnumerable<T> where T : IComparable<T>
+{
+    #region Fields
+    private FibonacciNode<T> root;
+    private int count;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Count of values in the heap.
+    /// </summary>
+    public int Count
+    {
+        get
+        {
+            return this.count;
+        }
+    }
+    /// <summary>
+    /// Minimal value contained in the heap.
+    /// </summary>
+    public T Minimum
+    {
+        get
+        {
+            return this.root.Value;
+        }
+    }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for Fibonacci heap data structure.
+    /// </summary>
+    public FibonacciHeap()
+    {
+
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds value to the heap.
+    /// </summary>
+    /// <param name="value">Value to be added.</param>
+    public void Add(T value)
+    {
+        var node = new FibonacciNode<T>
+        {
+            Value = value,
+            Marked = false,
+            Child = null,
+            Parent = null,
+            Degree = 0
+        };
+        node.Previous = node.Next = node;
+        this.root = this.Merge(this.root, node);
+        this.count++;
+    }
+    /// <summary>
+    /// Merge current heap with another heap. The other heap will be disposed at the end of this method.
+    /// </summary>
+    /// <param name="otherHeap">The heap to be merged with the current heap.</param>
+    public void Merge(FibonacciHeap<T> otherHeap)
+    {
+        this.root = this.Merge(this.root, otherHeap.root);
+        otherHeap.root = null;
+        this.count += otherHeap.count;
+    }
+    /// <summary>
+    /// Remove the minimum value from the heap.
+    /// </summary>
+    /// <returns>Minimum value.</returns>
+    public T Remove()
+    {
+        var currentRoot = this.root;
+        if (currentRoot != null)
+        {
+            this.root = this.RemoveMinimum(this.root);
+            this.count--;
+            return currentRoot.Value;
+        }
+        else
+        {
+            throw new IndexOutOfRangeException("Heap is empty!");
+        }
+    }
+    /// <summary>
+    /// Decrease the old value to a new provided value.
+    /// </summary>
+    /// <param name="oldValue">Old value used to find the node to have its key decreased.</param>
+    /// <param name="value">New value to be assigned to the node.</param>
+    public void DecreaseKey(T oldValue, T value)
+    {
+        var node = this.Find(this.root, oldValue);
+        this.root = this.DecreaseKey(this.root, node, value);
+    }
+    /// <summary>
+    /// Determines whether the heap contains a specified value.
+    /// </summary>
+    /// <param name="value">Value to locate in the heap.</param>
+    /// <returns></returns>
+    public bool Contains(T value)
+    {
+        return this.Find(this.root, value) != null;
+    }
+    /// <summary>
+    /// Clears the heap.
+    /// </summary>
+    public void Clear()
+    {
+        this.count = 0;
+        this.Remove(this.root);
+        this.root.Next = this.root.Previous = this.root.Parent = this.root.Child = null;
+        this.root = null;
+    }
+    /// <summary>
+    /// Return the heap structure as an array. Array is not sorted other than the
+    /// actual structure of the heap.
+    /// </summary>
+    /// <returns>Array with values from the heap.</returns>
+    public T[] ToArray()
+    {
+        if (this.count == 0)
+        {
+            return null;
+        }
+
+        var array = new T[this.count];
+        if (this.count == 1)
+        {
+            array[0] = this.root.Value;
+            return array;
+        }
+        else
+        {
+            var index = 0;
+            this.RecursiveFillArray(this.root, ref array, ref index);
+            return array;
+        }
+    }
+    /// <summary>
+    /// Enumerator that iterates over the heap. Note that the values are not sorted in any way.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the heap.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.GetEnumerator(this.root);
+    }
+    #endregion
+    #region Private Methods
+    /// <summary>
+    /// Recursively traverse the heap and copy its contents to an array.
+    /// </summary>
+    /// <param name="currentNode">Current node.</param>
+    /// <param name="array">Array to be filled with contents of heap.</param>
+    /// <param name="index">Index of the next unintialized element in the array.</param>
+    private void RecursiveFillArray(FibonacciNode<T> currentNode, ref T[] array, ref int index)
+    {
+        var oldNode = currentNode;
+        do
+        {
+            array[index] = currentNode.Value;
+            index++;
+            if (currentNode.HasChildren())
+            {
+                this.RecursiveFillArray(currentNode.Child, ref array, ref index);
+            }
+
+            currentNode = currentNode.Previous;
+        } while (currentNode != oldNode);
+    }
+    /// <summary>
+    /// Recursively enumerates over the tree.
+    /// </summary>
+    /// <param name="currentNode">Current node in the iteration.</param>
+    private IEnumerator<T> GetEnumerator(FibonacciNode<T> currentNode)
+    {
+        var queue = new Queue<FibonacciNode<T>>();
+        queue.Enqueue(currentNode);
+        while (queue.Count > 0)
+        {
+            currentNode = queue.Dequeue();
+            var oldNode = currentNode;
+            do
+            {
+                yield return currentNode.Value;
+                if (currentNode.HasChildren())
+                {
+                    queue.Enqueue(currentNode.Child);
+                }
+
+                currentNode = currentNode.Previous;
+            } while (currentNode != oldNode);
+        }
+    }
+    /// <summary>
+    /// Recursively remove the node and its children from the heap.
+    /// </summary>
+    /// <param name="node">Node to be removed.</param>
+    private void Remove(FibonacciNode<T> node)
+    {
+        if (node != null)
+        {
+            var current = node;
+            do
+            {
+                this.Remove(current.Child);
+                if (current.Parent != null)
+                {
+                    current.Parent.Child = null;
+                }
+
+                current = current.Next;
+            } while (current != node);
+            current.Next = current.Previous = current.Child = current.Parent = null;
+        }
+    }
+    /// <summary>
+    /// Merge two heaps into a larger heap.
+    /// </summary>
+    /// <param name="node1">Root of first heap.</param>
+    /// <param name="node2">Root of second heap.</param>
+    private FibonacciNode<T> Merge(FibonacciNode<T> node1, FibonacciNode<T> node2)
+    {
+        if (node1 == null)
+        {
+            return node2;
+        }
+
+        if (node2 == null)
+        {
+            return node1;
+        }
+
+        if (node1.Value.CompareTo(node2.Value) > 0)
+        {
+            var temp = node1;
+            node1 = node2;
+            node2 = temp;
+        }
+
+        var node1Next = node1.Next;
+        var node2Prev = node2.Previous;
+        node1.Next = node2;
+        node2.Previous = node1;
+        node1Next.Previous = node2Prev;
+        node2Prev.Next = node1Next;
+        return node1;
+    }
+    /// <summary>
+    /// Adds child to the parent.
+    /// </summary>
+    /// <param name="parent">Parent node to accept child.</param>
+    /// <param name="child">Child node to be added to the parent.</param>
+    private void AddChild(FibonacciNode<T> parent, FibonacciNode<T> child)
+    {
+        child.Previous = child.Next = child;
+        child.Parent = parent;
+        parent.Degree++;
+        parent.Child = this.Merge(parent.Child, child);
+    }
+    /// <summary>
+    /// Removes the parent of the specified node.
+    /// </summary>
+    /// <param name="node">Node to be removed from its parent.</param>
+    private void RemoveParent(FibonacciNode<T> node)
+    {
+        if (node == null)
+        {
+            return;
+        }
+
+        var current = node;
+        do
+        {
+            current.Marked = false;
+            current.Parent = null;
+            current = current.Next;
+        } while (current != node);
+    }
+    /// <summary>
+    /// Removes the minimum node from the provided tree.
+    /// </summary>
+    /// <param name="node">Root of the provided tree.</param>
+    /// <returns></returns>
+    private FibonacciNode<T> RemoveMinimum(FibonacciNode<T> node)
+    {
+        this.RemoveParent(node.Child);
+        if (node.Next == node)
+        {
+            node = node.Child;
+        }
+        else
+        {
+            node.Next.Previous = node.Previous;
+            node.Previous.Next = node.Next;
+            node = this.Merge(node.Next, node.Child);
+        }
+
+        if (node == null)
+        {
+            return node;
+        }
+
+        var trees = new FibonacciNode<T>[64];
+        while (true)
+        {
+            if (trees[node.Degree] != null)
+            {
+                var t = trees[node.Degree];
+                if (t == node)
+                {
+                    break;
+                }
+
+                trees[node.Degree] = null;
+                if (node.Value.CompareTo(t.Value) < 0)
+                {
+                    t.Previous.Next = t.Next;
+                    t.Next.Previous = t.Previous;
+                    this.AddChild(node, t);
+                }
+                else
+                {
+                    t.Previous.Next = t.Next;
+                    t.Next.Previous = t.Previous;
+                    if (node.Next == node)
+                    {
+                        t.Next = t.Previous = t;
+                        this.AddChild(t, node);
+                        node = t;
+                    }
+                    else
+                    {
+                        node.Previous.Next = t;
+                        node.Next.Previous = t;
+                        t.Next = node.Next;
+                        t.Previous = node.Previous;
+                        this.AddChild(t, node);
+                        node = t;
+                    }
+                }
+
+                continue;
+            }
+            else
+            {
+                trees[node.Degree] = node;
+            }
+
+            node = node.Next;
+        }
+
+        var min = node;
+        var start = node;
+        do
+        {
+            if (node.Value.CompareTo(min.Value) < 0)
+            {
+                min = node;
+            }
+
+            node = node.Next;
+        } while (node != start);
+        return min;
+    }
+    /// <summary>
+    /// Cut node from heap.
+    /// </summary>
+    /// <param name="root">Root of heap.</param>
+    /// <param name="node">Node to be cut.</param>
+    /// <returns></returns>
+    private FibonacciNode<T> Cut(FibonacciNode<T> root, FibonacciNode<T> node)
+    {
+        if (node.Next == node)
+        {
+            node.Parent.Child = null;
+        }
+        else
+        {
+            node.Next.Previous = node.Previous;
+            node.Previous.Next = node.Next;
+            node.Parent.Child = node.Next;
+        }
+
+        node.Next = node.Previous = node;
+        node.Marked = false;
+        return this.Merge(root, node);
+    }
+    /// <summary>
+    /// Decrease value of provided node substituting it with the provided value.
+    /// </summary>
+    /// <param name="root">Root of the heap.</param>
+    /// <param name="node">Node to have value decreased.</param>
+    /// <param name="value">New value of the node. It is only applied if the value is lower than the previous value.</param>
+    /// <returns></returns>
+    private FibonacciNode<T> DecreaseKey(FibonacciNode<T> root, FibonacciNode<T> node, T value)
+    {
+        if (node.Value.CompareTo(value) < 0)
+        {
+            return root;
+        }
+
+        node.Value = value;
+        if (node.Parent != null)
+        {
+            if (node.Value.CompareTo(node.Parent.Value) < 0)
+            {
+                root = this.Cut(root, node);
+                var parent = node.Parent;
+                node.Parent = null;
+                while (parent != null && parent.Marked)
+                {
+                    root = this.Cut(root, parent);
+                    node = parent;
+                    parent = node.Parent;
+                    node.Parent = null;
+                }
+
+                if (parent != null && parent.Parent != null)
+                {
+                    parent.Marked = true;
+                }
+            }
+        }
+        else
+        {
+            if (node.Value.CompareTo(root.Value) < 0)
+            {
+                root = node;
+            }
+        }
+
+        return root;
+    }
+    /// <summary>
+    /// Find the node that has the specified value in the heap.
+    /// </summary>
+    /// <param name="root">Root of the heap.</param>
+    /// <param name="value">Value to be found.</param>
+    /// <returns></returns>
+    private FibonacciNode<T> Find(FibonacciNode<T> root, T value)
+    {
+        var node = root;
+        if (node == null)
+        {
+            return null;
+        }
+
+        do
+        {
+            if (node.Value.CompareTo(value) == 0)
+            {
+                return node;
+            }
+
+            var ret = this.Find(node.Child, value);
+            if (ret != null)
+            {
+                return ret;
+            }
+
+            node = node.Next;
+        } while (node != root);
+        return null;
+    }
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
+}
+[Serializable]
+internal sealed class FibonacciNode<T>
+{
+    #region Fields
+    private FibonacciNode<T> previous;
+    private FibonacciNode<T> next;
+    private FibonacciNode<T> child;
+    private FibonacciNode<T> parent;
+    private T value;
+    private int degree;
+    private bool marked;
+    #endregion
+    #region Properties
+    public FibonacciNode<T> Previous
+    {
+        get
+        {
+            return this.previous;
+        }
+        set
+        {
+            this.previous = value;
+        }
+    }
+    public FibonacciNode<T> Next
+    {
+        get
+        {
+            return this.next;
+        }
+        set
+        {
+            this.next = value;
+        }
+    }
+    public FibonacciNode<T> Child
+    {
+        get
+        {
+            return this.child;
+        }
+        set
+        {
+            this.child = value;
+        }
+    }
+    public FibonacciNode<T> Parent
+    {
+        get
+        {
+            return this.parent;
+        }
+        set
+        {
+            this.parent = value;
+        }
+    }
+    public bool Marked
+    {
+        get
+        {
+            return this.marked;
+        }
+        set
+        {
+            this.marked = value;
+        }
+    }
+    public T Value
+    {
+        get
+        {
+            return this.value;
+        }
+        set
+        {
+            this.value = value;
+        }
+    }
+    public int Degree
+    {
+        get
+        {
+            return this.degree;
+        }
+        set
+        {
+            this.degree = value;
+        }
+    }
+    #endregion
+    #region Public Methods
+    public bool HasChildren()
+    {
+        return this.child != null;
+    }
+    public bool HasParent()
+    {
+        return this.parent != null;
+    }
+    #endregion
+}

SystemExtensions.NetStandard/Collections/IQueue.cs

@@ -0,0 +1,38 @@
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Interface for queue implementations.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+public interface IQueue<T> : IEnumerable<T>
+{
+    /// <summary>
+    /// Returns the number of items in the queue.
+    /// </summary>
+    int Count { get; }
+    /// <summary>
+    /// Inserts item into the queue.
+    /// </summary>
+    /// <param name="item">Item to be inserted.</param>
+    void Enqueue(T item);
+    /// <summary>
+    /// Remove the first item in the queue.
+    /// </summary>
+    /// <returns>First item in the queue.</returns>
+    T Dequeue();
+    /// <summary>
+    /// Looks up the first item from the queue without removing it.
+    /// </summary>
+    /// <returns>First item from the queue.</returns>
+    T Peek();
+    /// <summary>
+    /// Clears the contents of the queue.
+    /// </summary>
+    void Clear();
+    /// <summary>
+    /// Checks if queue contains an item.
+    /// </summary>
+    /// <param name="item">Item to be checked.</param>
+    /// <returns>True if queue contains provided item. False otherwise.</returns>
+    bool Contains(T item);
+}

SystemExtensions.NetStandard/Collections/PriorityQueue.cs

@@ -0,0 +1,102 @@
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Priority Queue data structure. The implementation is based on an array-based implementation of Binary Heap.
+/// Exposes some of the functionality of the Binary Heap as a queue.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class PriorityQueue<T> : IQueue<T> where T : IComparable<T>
+{
+    #region Fields
+    private readonly BinaryHeap<T> binaryHeap;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Returns the number of elements stored into the queue.
+    /// </summary>
+    public int Count
+    {
+        get
+        {
+            return this.binaryHeap.Count;
+        }
+    }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for priority queue data structure.
+    /// </summary>
+    public PriorityQueue()
+    {
+        this.binaryHeap = new BinaryHeap<T>();
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Add provided value to the queue.
+    /// </summary>
+    /// <param name="value">Value to be added to the queue.</param>
+    public void Enqueue(T value)
+    {
+        this.binaryHeap.Add(value);
+    }
+    /// <summary>
+    /// Pops the queue and removes the highest priority value from the queue.
+    /// </summary>
+    /// <returns>Highest priority value from the queue</returns>
+    public T Dequeue()
+    {
+        if (this.Count > 0)
+        {
+            return this.binaryHeap.Remove();
+        }
+        else
+        {
+            throw new IndexOutOfRangeException("Queue is empty!");
+        }
+    }
+    /// <summary>
+    /// Looks up the highest priority value from the queue. Doesn't alter the queue in any way.
+    /// </summary>
+    /// <returns>Highest priority value from the queue.</returns>
+    public T Peek()
+    {
+        return this.binaryHeap.Min;
+    }
+    /// <summary>
+    /// Clears the queue contents, removing any value stored into the queue.
+    /// </summary>
+    public void Clear()
+    {
+        this.binaryHeap.Clear();
+    }
+    /// <summary>
+    /// Checks if queue contains provided item.
+    /// </summary>
+    /// <param name="item">Item to be checked.</param>
+    /// <returns>True if queue contains the provided item. False otherwise.</returns>
+    public bool Contains(T item)
+    {
+        return this.binaryHeap.Contains(item);
+    }
+    /// <summary>
+    /// Returns an enumerator that iterates over the queue.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the queue.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.binaryHeap.GetEnumerator();
+    }
+    #endregion
+    #region Private Methods
+    /// <summary>
+    /// Necesarry for the implementatio of IQueue.
+    /// </summary>
+    /// <returns></returns>
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
+}

SystemExtensions.NetStandard/Collections/SkipList.cs

@@ -0,0 +1,248 @@
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Skip list implementation.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class SkipList<T> : ICollection<T> where T : IComparable<T>
+{
+    #region Fields
+    [Serializable]
+    private class NodeSet<TKey>
+    {
+        public TKey Key;
+        public int Level;
+        public NodeSet<TKey>[] Next;
+
+        public NodeSet(TKey key, int level)
+        {
+            this.Key = key;
+            this.Level = level;
+            this.Next = new NodeSet<TKey>[level + 1];
+        }
+    }
+    private int count;
+    private readonly Random random;
+    private readonly NodeSet<T> head;
+    private readonly NodeSet<T> end;
+    private readonly int maxLevel = 10;
+    private int level;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Number of elements in the list.
+    /// </summary>
+    public int Count { get => this.count; }
+    /// <summary>
+    /// Specifies if the collection can be modified.
+    /// </summary>
+    public bool IsReadOnly { get; set; }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Creates a new instance of SkipList collection.
+    /// </summary>
+    /// <param name="maxLevel">Maximum level of the skip list.</param>
+    public SkipList(int maxLevel = 10)
+    {
+        this.maxLevel = maxLevel;
+        this.random = new Random();
+        this.head = new NodeSet<T>(default, maxLevel);
+        this.end = this.head;
+        for (var i = 0; i <= maxLevel; i++)
+        {
+            this.head.Next[i] = this.end;
+        }
+    }
+
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds an item to the collection.
+    /// </summary>
+    /// <param name="item">Item to be added.</param>
+    public void Add(T item)
+    {
+        var curNode = this.head;
+        var newLevel = 0;
+        while (this.random.Next(0, 2) > 0 && newLevel < this.maxLevel)
+        {
+            newLevel++;
+        }
+
+        if (newLevel > this.level)
+        {
+            this.level = newLevel;
+        }
+
+        var newNode = new NodeSet<T>(item, newLevel);
+        for (var i = 0; i <= newLevel; i++)
+        {
+            if (i > curNode.Level)
+            {
+                curNode = this.head;
+            }
+
+            while (curNode.Next[i] != this.end && curNode.Next[i].Key.CompareTo(item) < 0)
+            {
+                curNode = curNode.Next[i];
+            }
+
+            newNode.Next[i] = curNode.Next[i];
+            curNode.Next[i] = newNode;
+        }
+
+        this.count++;
+    }
+    /// <summary>
+    /// Removes provided item from the collection.
+    /// </summary>
+    /// <param name="item">Item to be removed.</param>
+    /// <returns>True if removal was successful.</returns>
+    public bool Remove(T item)
+    {
+        var removed = false;
+        var curNode = this.head;
+        for (var i = 0; i <= this.maxLevel; i++)
+        {
+            if (i > curNode.Level)
+            {
+                curNode = this.head;
+            }
+
+            while (curNode.Next[i] != this.end && curNode.Next[i].Key.CompareTo(item) < 0)
+            {
+                curNode = curNode.Next[i];
+            }
+
+            if (curNode.Next[i].Key.CompareTo(item) == 0) //Item is present on this level
+            {
+                curNode.Next[i] = curNode.Next[i].Next[i];
+                removed = true;
+            }
+            else
+            {
+                break;
+            }
+        }
+
+        if (removed)
+        {
+            this.count--;
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+    /// <summary>
+    /// Clears the collection.
+    /// </summary>
+    public void Clear()
+    {
+        for (var i = 0; i < this.maxLevel; i++)
+        {
+            this.head.Next[i] = this.end;
+        }
+
+        this.count = 0;
+    }
+    /// <summary>
+    /// Checks if item is present in the collection.
+    /// </summary>
+    /// <param name="item">Item to be checked.</param>
+    /// <returns>True if item is present in the collection.</returns>
+    public bool Contains(T item)
+    {
+        if (this.Find(item) != null)
+        {
+            return true;
+        }
+
+        return false;
+    }
+    /// <summary>
+    /// Copies the skip list contents onto the provided array.
+    /// </summary>
+    /// <param name="array">Array to hold the values from the list.</param>
+    /// <param name="arrayIndex">Index to start insertion in the array.</param>
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        var node = this.head.Next[0];
+        while (node != this.end)
+        {
+            array[arrayIndex] = node.Key;
+            arrayIndex++;
+            node = node.Next[0];
+        }
+    }
+    /// <summary>
+    /// Copies the elements from the collection into an array.
+    /// </summary>
+    /// <returns>Array filled with elements from the collection.</returns>
+    public T[] ToArray()
+    {
+        var array = new T[this.count];
+        var index = 0;
+        var curNode = this.head.Next[0];
+        while (curNode != this.end)
+        {
+            array[index] = curNode.Key;
+            index++;
+            curNode = curNode.Next[0];
+        }
+
+        return array;
+    }
+    /// <summary>
+    /// Enumerator that iterates over the collection.
+    /// </summary>
+    /// <returns></returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        var curNode = this.head.Next[0];
+        while (curNode != this.end)
+        {
+            yield return curNode.Key;
+            curNode = curNode.Next[0];
+        }
+    }
+    #endregion
+    #region Private Methods
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    private NodeSet<T> Find(T key)
+    {
+        var curNode = this.head;
+
+        for (var i = this.level; i >= 0; i--)
+        {
+            while (curNode.Next[i] != this.end)
+            {
+                if (curNode.Next[i].Key.CompareTo(key) > 0)
+                {
+                    break;
+                }
+                else if (curNode.Next[i].Key.CompareTo(key) == 0)
+                {
+                    return curNode.Next[i];
+                }
+
+                curNode = curNode.Next[i];
+            }
+        }
+
+        curNode = curNode.Next[0];
+        if (curNode != this.end && curNode.Key.CompareTo(key) == 0)
+        {
+            return curNode;
+        }
+
+        return null;
+    }
+    #endregion
+}

SystemExtensions.NetStandard/Collections/Treap.cs

@@ -0,0 +1,287 @@
+namespace System.Collections.Generic;
+
+/// <summary>
+/// Treap implementation.
+/// </summary>
+/// <typeparam name="T">Provided type.</typeparam>
+[Serializable]
+public sealed class Treap<T> : ICollection<T> where T : IComparable<T>
+{
+    #region Fields
+    [Serializable]
+    private class Node<TKey>
+    {
+        public TKey Key;
+        public int Priority;
+        public Node<TKey> Left, Right;
+        public Node(TKey key, int priority)
+        {
+            this.Key = key;
+            this.Priority = priority;
+            this.Left = null;
+            this.Right = null;
+        }
+    }
+    private readonly Random randomGen;
+    private Node<T> root;
+    private int count;
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Count of values in the treap.
+    /// </summary>
+    public int Count
+    {
+        get
+        {
+            return this.count;
+        }
+    }
+    /// <summary>
+    /// Not implemented.
+    /// </summary>
+    public bool IsReadOnly => false;
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor for treap.
+    /// </summary>
+    public Treap()
+    {
+        this.randomGen = new Random();
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Adds value to the treap.
+    /// </summary>
+    /// <param name="value">Value to be added.</param>
+    public void Add(T value)
+    {
+        this.root = this.InsertNode(this.root, value);
+        this.count++;
+    }
+    /// <summary>
+    /// Removes value from treap.
+    /// </summary>
+    /// <param name="value">Value to be removed.</param>
+    public bool Remove(T value)
+    {
+        this.root = this.RemoveNode(this.root, value);
+        this.count--;
+        return true;
+    }
+    /// <summary>
+    /// Clears the treap.
+    /// </summary>
+    public void Clear()
+    {
+        this.Clear(this.root);
+        this.root = null;
+        this.count = 0;
+    }
+    /// <summary>
+    /// Determines whether the treap contains the specified value.
+    /// </summary>
+    /// <param name="value">Value to locate in the treap.</param>
+    /// <returns></returns>
+    public bool Contains(T value)
+    {
+        return this.Find(this.root, value) != null;
+    }
+    /// <summary>
+    /// Returns the treap structure as an ordered array.
+    /// </summary>
+    /// <returns>Ordered array containing the values stored in the treap.</returns>
+    public T[] ToArray()
+    {
+        if (this.root != null)
+        {
+            var array = new T[this.count];
+            var index = 0;
+            this.ToArray(this.root, ref array, ref index);
+            return array;
+        }
+        else
+        {
+            return null;
+        }
+    }
+    /// <summary>
+    /// Copy the treap into the provided array.
+    /// </summary>
+    /// <param name="array">Array to be populated with the values contained in the array.</param>
+    /// <param name="arrayIndex">Starting index of the array.</param>
+    public void CopyTo(T[] array, int arrayIndex)
+    {
+        this.ToArray(this.root, ref array, ref arrayIndex);
+    }
+    /// <summary>
+    /// Enumerator that iterates over the treap. Note that the values are not guaranteed to be sorted.
+    /// </summary>
+    /// <returns>Enumerator that iterates over the treap.</returns>
+    public IEnumerator<T> GetEnumerator()
+    {
+        return this.GetEnumerator(this.root);
+    }
+    #endregion
+    #region Private Methods
+    private Node<T> InsertNode(Node<T> node, T key)
+    {
+        if (node == null)
+        {
+            node = new Node<T>(key, this.randomGen.Next(0, 100));
+            return node;
+        }
+        else if (key.CompareTo(node.Key) <= 0)
+        {
+            node.Left = this.InsertNode(node.Left, key);
+            if (node.Left.Priority > node.Priority)
+            {
+                node = this.RotateRight(node);
+            }
+        }
+        else
+        {
+            node.Right = this.InsertNode(node.Right, key);
+            if (node.Right.Priority > node.Priority)
+            {
+                node = this.RotateLeft(node);
+            }
+        }
+
+        return node;
+    }
+    private Node<T> RemoveNode(Node<T> node, T key)
+    {
+        if (node == null)
+        {
+            return node;
+        }
+
+        if (key.CompareTo(node.Key) < 0)
+        {
+            node.Left = this.RemoveNode(node.Left, key);
+        }
+        else if (key.CompareTo(node.Key) > 0)
+        {
+            node.Right = this.RemoveNode(node.Right, key);
+        }
+        else if (node.Left == null)
+        {
+            node = node.Right;
+        }
+        else if (node.Right == null)
+        {
+            node = node.Left;
+        }
+        else if (node.Left.Priority < node.Right.Priority)
+        {
+            node = this.RotateLeft(node);
+            node.Left = this.RemoveNode(node.Left, key);
+        }
+        else
+        {
+            node = this.RotateRight(node);
+            node.Right = this.RemoveNode(node.Right, key);
+        }
+
+        return node;
+    }
+    private Node<T> RotateRight(Node<T> node)
+    {
+        Node<T> temp = node.Left, temp2 = temp.Right;
+        temp.Right = node;
+        node.Left = temp2;
+        return temp;
+    }
+    private Node<T> RotateLeft(Node<T> node)
+    {
+        Node<T> temp = node.Right, temp2 = temp.Left;
+        temp.Left = node;
+        node.Right = temp2;
+        return temp;
+    }
+    private void Clear(Node<T> node)
+    {
+        if (node.Left != null)
+        {
+            this.Clear(node.Left);
+        }
+
+        if (node.Right != null)
+        {
+            this.Clear(node.Right);
+        }
+
+        node.Left = node.Right = null;
+    }
+    private Node<T> Find(Node<T> node, T key)
+    {
+        if (node == null)
+        {
+            return node;
+        }
+        else
+        {
+            if (node.Key.CompareTo(key) < 0)
+            {
+                var found = this.Find(node.Left, key);
+                if (found == null)
+                {
+                    found = this.Find(node.Right, key);
+                }
+
+                return found;
+            }
+            else if (node.Key.CompareTo(key) > 0)
+            {
+                var found = this.Find(node.Right, key);
+                if (found == null)
+                {
+                    found = this.Find(node.Left, key);
+                }
+
+                return found;
+            }
+            else
+            {
+                return node;
+            }
+        }
+    }
+    private void ToArray(Node<T> node, ref T[] array, ref int index)
+    {
+        if (node != null)
+        {
+            this.ToArray(node.Left, ref array, ref index);
+            array[index] = node.Key;
+            index++;
+            this.ToArray(node.Right, ref array, ref index);
+        }
+    }
+    private IEnumerator<T> GetEnumerator(Node<T> currentNode)
+    {
+        var queue = new Queue<Node<T>>();
+        queue.Enqueue(currentNode);
+        while (queue.Count > 0)
+        {
+            currentNode = queue.Dequeue();
+            yield return currentNode.Key;
+            if (currentNode.Left != null)
+            {
+                queue.Enqueue(currentNode.Left);
+            }
+
+            if (currentNode.Right != null)
+            {
+                queue.Enqueue(currentNode.Right);
+            }
+        }
+    }
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        throw new NotImplementedException();
+    }
+    #endregion
+}

SystemExtensions.NetStandard/Extensions/BytesExtensions.cs

@@ -0,0 +1,24 @@
+using System.IO;
+
+namespace System.Extensions;
+
+public static class BytesExtensions
+{
+    public static byte[] ReadAllBytes(this Stream stream)
+    {
+        if (stream is null)
+        {
+            throw new ArgumentNullException(nameof(stream));
+        }
+
+        var buffer = new byte[256];
+        using var ms = new MemoryStream();
+        int read;
+        while ((read = stream.Read(buffer, 0, 256)) > 0)
+        {
+            ms.Write(buffer, 0, read);
+        }
+
+        return ms.ToArray();
+    }
+}

SystemExtensions.NetStandard/Extensions/CastExtensions.cs

@@ -0,0 +1,49 @@
+namespace System.Extensions;
+
+public static class CastExtensions
+{
+    public static int Floor(this double value)
+    {
+        return (int)Math.Floor(value);
+    }
+
+    public static int Ceiling(this double value)
+    {
+        return (int)Math.Ceiling(value);
+    }
+
+    public static int Round(this double value)
+    {
+        return (int)Math.Round(value);
+    }
+
+    public static int Floor(this float value)
+    {
+        return (int)Math.Floor(value);
+    }
+
+    public static int Ceiling(this float value)
+    {
+        return (int)Math.Ceiling(value);
+    }
+
+    public static int Round(this float value)
+    {
+        return (int)Math.Round(value);
+    }
+
+    public static int ToInt(this double value)
+    {
+        return (int)value;
+    }
+
+    public static int ToInt(this float value)
+    {
+        return (int)value;
+    }
+
+    public static int ToInt(this decimal value)
+    {
+        return (int)value;
+    }
+}

SystemExtensions.NetStandard/Extensions/LinqExtensions.cs

@@ -0,0 +1,88 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace System.Extensions;
+
+public static class LinqExtensions
+{
+    public static bool None<T>(this IEnumerable<T> enumerable, Func<T, bool> predicate)
+    {
+        enumerable.ThrowIfNull(nameof(enumerable));
+        predicate.ThrowIfNull(nameof(predicate));
+
+        return !enumerable.Any(predicate);
+    }
+
+    public static bool None<T>(this IEnumerable<T> enumerable)
+    {
+        enumerable.ThrowIfNull(nameof(enumerable));
+
+        return !enumerable.Any();
+    }
+
+    public static ICollection<T> ClearAnd<T>(this ICollection<T> collection)
+    {
+        if (collection is null)
+        {
+            throw new ArgumentNullException(nameof(collection));
+        }
+
+        collection.Clear();
+        return collection;
+    }
+    
+    public static ICollection<T> AddRange<T>(this ICollection<T> collection, IEnumerable<T> values)
+    {
+        if (collection is null)
+        {
+            throw new ArgumentNullException(nameof(collection));
+        }
+
+        if (values is null)
+        {
+            throw new ArgumentNullException(nameof(values));
+        }
+
+        foreach (var item in values)
+        {
+            collection.Add(item);
+        }
+
+        return collection;
+    }
+
+    public static int IndexOfWhere<T>(this ICollection<T> collection, Func<T, bool> selector)
+    {
+        if (collection is null)
+        {
+            throw new ArgumentNullException(nameof(collection));
+        }
+
+        if (selector is null)
+        {
+            throw new ArgumentNullException(nameof(selector));
+        }
+
+        var index = 0;
+        foreach (var item in collection)
+        {
+            if (selector(item))
+            {
+                return index;
+            }
+
+            index++;
+        }
+
+        return -1;
+    }
+
+    public static IEnumerable<T> Do<T>(this IEnumerable<T> enumerable, Action<T> action)
+    {
+        foreach(var value in enumerable)
+        {
+            action(value);
+            yield return value;
+        }
+    }
+}

SystemExtensions.NetStandard/Extensions/LoggingExtensions.cs

@@ -0,0 +1,12 @@
+using Microsoft.Extensions.Logging;
+using System.Logging;
+
+namespace System.Extensions;
+
+public static class LoggingExtensions
+{
+    public static ScopedLogger<T> CreateScopedLogger<T>(this ILogger<T> logger, string methodName, string flowIdentifier)
+    {
+        return ScopedLogger<T>.Create(logger, methodName, flowIdentifier);
+    }
+}

SystemExtensions.NetStandard/Extensions/ObjectExtensions.cs

@@ -0,0 +1,58 @@
+using Newtonsoft.Json;
+
+namespace System.Extensions;
+
+public static class ObjectExtensions
+{
+    public static T Deserialize<T>(this string serialized)
+        where T : class
+    {
+        if (serialized.IsNullOrWhiteSpace())
+        {
+            throw new ArgumentException("Provided serialized string cannot be null or whitespace", nameof(serialized));
+        }
+
+        return JsonConvert.DeserializeObject<T>(serialized);
+    }
+
+    public static string Serialize<T>(this T obj)
+        where T : class
+    {
+        if (obj is null)
+        {
+            throw new ArgumentNullException(nameof(obj));
+        }
+
+        return JsonConvert.SerializeObject(obj);
+    }
+
+    public static T Cast<T>(this object obj)
+    {
+        return (T)obj;
+    }
+
+    public static T As<T>(this object obj) where T : class
+    {
+        return obj as T;
+    }
+
+    public static Optional<T> ToOptional<T>(this T obj)
+    {
+        return Optional.FromValue(obj);
+    }
+
+    public static T ThrowIfNull<T>([ValidatedNotNull] this T obj, string name) where T : class
+    {
+        if (obj is null)
+        {
+            throw new ArgumentNullException(name);
+        }
+
+        return obj;
+    }
+
+    [AttributeUsage(AttributeTargets.Parameter)]
+    sealed class ValidatedNotNullAttribute : Attribute
+    {
+    }
+}

SystemExtensions.NetStandard/Extensions/Optional.cs

@@ -0,0 +1,193 @@
+namespace System.Extensions;
+
+public static class Optional
+{
+    public static Optional<T> None<T>()
+    {
+        return new Optional<T>.None();
+    }
+
+    public static Optional<T> FromValue<T>(T value)
+    {
+        if (value == null)
+        {
+            return new Optional<T>.None();
+        }
+
+        return new Optional<T>.Some(value);
+    }
+}
+
+public abstract class Optional<T> : IEquatable<Optional<T>>
+{
+    public Optional(T value)
+    {
+        this.Value = value;
+    }
+
+    private T Value { get; }
+
+    public T ExtractValue()
+    {
+        if (this is None)
+        {
+            return default;
+        }
+        else
+        {
+            return this.Value;
+        }
+    }
+    public Optional<T> Do(Action<T> onSome, Action onNone)
+    {
+        if (onSome is null)
+        {
+            throw new ArgumentNullException(nameof(onSome));
+        }
+
+        if (onNone is null)
+        {
+            throw new ArgumentNullException(nameof(onNone));
+        }
+
+        if (this is Some)
+        {
+            onSome.Invoke(this.Value);
+        }
+        else
+        {
+            onNone.Invoke();
+        }
+
+        return this;
+    }
+    public Optional<T> DoAny(Action<T> onSome = null, Action onNone = null)
+    {
+        if (this is Some)
+        {
+            onSome?.Invoke(this.Value);
+        }
+        else
+        {
+            onNone?.Invoke();
+        }
+
+        return this;
+    }
+    public Optional<V> Switch<V>(Func<T, V> onSome, Func<V> onNone)
+    {
+        if (onSome is null)
+        {
+            throw new ArgumentNullException($"{nameof(onSome)}");
+        }
+
+        if (onNone is null)
+        {
+            throw new ArgumentNullException($"{nameof(onNone)}");
+        }
+
+        if (this is Some)
+        {
+            return Optional.FromValue(onSome.Invoke(this.Value));
+        }
+        else
+        {
+            return Optional.FromValue(onNone.Invoke());
+        }
+    }
+    public Optional<V> SwitchAny<V>(Func<T, V> onSome = null, Func<V> onNone = null)
+    {
+        if (this is Some)
+        {
+            return onSome != null ? Optional.FromValue(onSome.Invoke(this.Value)) : Optional.FromValue(default(V));
+        }
+        else
+        {
+            return onNone != null ? Optional.FromValue(onNone.Invoke()) : Optional.FromValue(default(V));
+        }
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is Optional<T>)
+        {
+            return this.Equals(obj);
+        }
+
+        return base.Equals(obj);
+    }
+
+    public bool Equals(Optional<T> other)
+    {
+        if (this is Some && other is Some)
+        {
+            return this.As<Some>().Equals(other.As<Some>());
+        }
+
+        return false;
+    }
+
+    public static implicit operator Optional<T>(T value)
+    {
+        return Optional.FromValue(value);
+    }
+
+    public override int GetHashCode()
+    {
+        return this.Value == null ? base.GetHashCode() : this.Value.GetHashCode();
+    }
+
+    internal class Some : Optional<T>, IEquatable<Some>
+    {
+        public Some(T value) : base(value)
+        {
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (obj is Some)
+            {
+                return this.Equals(obj.As<Some>());
+            }
+
+            return base.Equals(obj);
+        }
+
+        public bool Equals(Some other)
+        {
+            if (other is None)
+            {
+                return false;
+            }
+
+            if (other is Some)
+            {
+                return this.Value.Equals(other.Value);
+            }
+
+            return false;
+        }
+
+        public static bool operator ==(Some left, Some right)
+        {
+            return left?.Equals(right) == true;
+        }
+
+        public static bool operator !=(Some left, Some right)
+        {
+            return left?.Equals(right) != true;
+        }
+
+        public override int GetHashCode()
+        {
+            return this.Value is object ? this.Value.GetHashCode() : this.As<object>().GetHashCode();
+        }
+    }
+
+    internal class None : Optional<T>
+    {
+        public None() : base(default)
+        {
+        }
+    }
+}

SystemExtensions.NetStandard/Extensions/Result.cs

@@ -0,0 +1,216 @@
+namespace System.Extensions;
+
+public class Result<TSuccess, TFailure>
+{
+    private readonly object value;
+
+    public Result(TSuccess successValue)
+    {
+        this.value = successValue;
+    }
+    public Result(TFailure failureValue)
+    {
+        this.value = failureValue;
+    }
+
+    public bool TryExtractSuccess(out TSuccess successValue)
+    {
+
+        if (this.value is TSuccess success)
+        {
+            successValue = success;
+            return true;
+        }
+        else
+        {
+            successValue = default;
+            return false;
+        }
+    }
+    public bool TryExtractFailure(out TFailure failureValue)
+    {
+
+        if (this.value is TFailure failure)
+        {
+            failureValue = failure;
+            return true;
+        }
+        else
+        {
+            failureValue = default;
+            return false;
+        }
+    }
+    public Result<TSuccess, TFailure> Do(Action onSuccess, Action onFailure)
+    {
+        if (onSuccess is null)
+        {
+            throw new ArgumentNullException(nameof(onSuccess));
+        }
+
+        if (onFailure is null)
+        {
+            throw new ArgumentNullException(nameof(onFailure));
+        }
+
+        if (this.value is TSuccess)
+        {
+            onSuccess.Invoke();
+        }
+        else if (this.value is TFailure)
+        {
+            onFailure.Invoke();
+        }
+
+        return this;
+    }
+    public Result<TSuccess, TFailure> DoAny(Action onSuccess = null, Action onFailure = null)
+    {
+        if (this.value is TSuccess)
+        {
+            onSuccess?.Invoke();
+        }
+        else if (this.value is TFailure)
+        {
+            onFailure?.Invoke();
+        }
+
+        return this;
+    }
+    public Result<TSuccess, TFailure> Do(Action<TSuccess> onSuccess, Action<TFailure> onFailure)
+    {
+        if (onSuccess is null)
+        {
+            throw new ArgumentNullException(nameof(onSuccess));
+        }
+
+        if (onFailure is null)
+        {
+            throw new ArgumentNullException(nameof(onFailure));
+        }
+
+        if (this.value is TSuccess success)
+        {
+            onSuccess.Invoke(success);
+        }
+        else if (this.value is TFailure failure)
+        {
+            onFailure.Invoke(failure);
+        }
+
+        return this;
+    }
+    public Result<TSuccess, TFailure> DoAny(Action<TSuccess> onSuccess = null, Action<TFailure> onFailure = null)
+    {
+        if (this.value is TSuccess success)
+        {
+            onSuccess?.Invoke(success);
+        }
+        else if (this.value is TFailure failure)
+        {
+            onFailure?.Invoke(failure);
+        }
+
+        return this;
+    }
+    public T Switch<T>(Func<TSuccess, T> onSuccess, Func<TFailure, T> onFailure)
+    {
+        if (onSuccess is null)
+        {
+            throw new ArgumentNullException(nameof(onSuccess));
+        }
+
+        if (onFailure is null)
+        {
+            throw new ArgumentNullException(nameof(onFailure));
+        }
+
+        if (this.value is TSuccess success)
+        {
+            return onSuccess.Invoke(success);
+        }
+        else if (this.value is TFailure failure)
+        {
+            return onFailure.Invoke(failure);
+        }
+
+        throw new InvalidOperationException($"{nameof(this.value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to {typeof(T)}");
+    }
+    public T SwitchAny<T>(Func<TSuccess, T> onSuccess = null, Func<TFailure, T> onFailure = null)
+    {
+        if (this.value is TSuccess success)
+        {
+            return onSuccess is null ? default : onSuccess.Invoke(success);
+        }
+        else if (this.value is TFailure failure)
+        {
+            return onFailure is null ? default : onFailure.Invoke(failure);
+        }
+
+        throw new InvalidOperationException($"{nameof(this.value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to {typeof(T)}");
+    }
+    public Result<V, K> Switch<V, K>(Func<TSuccess, V> onSuccess, Func<TFailure, K> onFailure)
+    {
+        if (onSuccess is null)
+        {
+            throw new ArgumentNullException(nameof(onSuccess));
+        }
+
+        if (onFailure is null)
+        {
+            throw new ArgumentNullException(nameof(onFailure));
+        }
+
+        if (this.value is TSuccess success)
+        {
+            return Result<V, K>.Success(onSuccess.Invoke(success));
+        }
+        else if (this.value is TFailure failure)
+        {
+            return Result<V, K>.Failure(onFailure.Invoke(failure));
+        }
+
+        throw new InvalidOperationException($"{nameof(this.value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to Result of type {typeof(V)} or {typeof(K)}");
+    }
+    public Result<V, K> SwitchAny<V, K>(Func<TSuccess, V> onSuccess, Func<TFailure, K> onFailure)
+    {
+        if (this.value is TSuccess success)
+        {
+            return Result<V, K>.Success(onSuccess is null ? default : onSuccess.Invoke(success));
+        }
+        else if (this.value is TFailure failure)
+        {
+            return Result<V, K>.Failure(onFailure is null ? default : onFailure.Invoke(failure));
+        }
+
+        throw new InvalidOperationException($"{nameof(this.value)} must be of type {typeof(TSuccess)} or {typeof(TFailure)} in order to switch to Result of type {typeof(V)} or {typeof(K)}");
+    }
+    public Optional<TSuccess> ToOptional()
+    {
+        if (this.value is TSuccess)
+        {
+            return Optional.FromValue(this.value.Cast<TSuccess>());
+        }
+
+        return Optional.None<TSuccess>();
+    }
+
+    public static implicit operator Result<TSuccess, TFailure>(TSuccess success)
+    {
+        return Success(success);
+    }
+
+    public static implicit operator Result<TSuccess, TFailure>(TFailure failure)
+    {
+        return Failure(failure);
+    }
+
+    public static Result<TSuccess, TFailure> Success(TSuccess value)
+    {
+        return new Result<TSuccess, TFailure>(value);
+    }
+    public static Result<TSuccess, TFailure> Failure(TFailure value)
+    {
+        return new Result<TSuccess, TFailure>(value);
+    }
+}

SystemExtensions.NetStandard/Extensions/StreamExtensions.cs

@@ -0,0 +1,84 @@
+using System.IO;
+using System.Text;
+
+namespace System.Extensions;
+
+public static class StreamExtensions
+{
+    public static void DoWhileReading(this Stream stream, Action<int, byte[]> action, int bufferLength = 256)
+    {
+        if (stream is null)
+        {
+            throw new ArgumentNullException(nameof(stream));
+        }
+
+        if (action is null)
+        {
+            throw new ArgumentNullException(nameof(action));
+        }
+
+        var buffer = new byte[bufferLength];
+        var read = stream.Read(buffer, 0, bufferLength);
+        while(read > 0)
+        {
+            action(bufferLength, buffer);
+            read = stream.Read(buffer, 0, bufferLength);
+        }
+    }
+
+    public static byte[] ReadBytes(this Stream stream, int count)
+    {
+        if (stream is null)
+        {
+            throw new ArgumentNullException(nameof(stream));
+        }
+
+        var buffer = new byte[count];
+        stream.Read(buffer, 0, count);
+        return buffer;
+    }
+
+    public static Stream Rewind(this Stream stream)
+    {
+        if (stream is null)
+        {
+            throw new ArgumentNullException(nameof(stream));
+        }
+
+        if (!stream.CanSeek)
+        {
+            throw new InvalidOperationException("Stream doesn't support rewinding");
+        }
+
+        stream.Seek(0, SeekOrigin.Begin);
+        return stream;
+    }
+
+    public static string ReadUntil(this StreamReader sr, string delim)
+    {
+        var sb = new StringBuilder();
+        var found = false;
+
+        while (!found && !sr.EndOfStream)
+        {
+            for (var i = 0; i < delim.Length; i++)
+            {
+                var c = (char)sr.Read();
+                sb.Append(c);
+
+                if (c != delim[i])
+                {
+                    break;
+                }
+
+                if (i == delim.Length - 1)
+                {
+                    sb.Remove(sb.Length - delim.Length, delim.Length);
+                    found = true;
+                }
+            }
+        }
+
+        return sb.ToString();
+    }
+}

SystemExtensions.NetStandard/Extensions/StringExtensions.cs

@@ -0,0 +1,26 @@
+using System.Text;
+
+namespace System.Extensions;
+
+public static class StringExtensions
+{
+    public static bool IsNullOrEmpty(this string s)
+    {
+        return string.IsNullOrEmpty(s);
+    }
+
+    public static bool IsNullOrWhiteSpace(this string s)
+    {
+        return string.IsNullOrWhiteSpace(s);
+    }
+
+    public static byte[] GetBytes(this string s)
+    {
+        return Encoding.UTF8.GetBytes(s);
+    }
+
+    public static string GetString(this byte[] bytes)
+    {
+        return Encoding.UTF8.GetString(bytes);
+    }
+}

SystemExtensions.NetStandard/Extensions/TaskExtensions.cs

@@ -0,0 +1,185 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace System.Extensions;
+
+public static class TaskExtensions
+{
+    /// <summary>
+    /// Mark task as <see cref="TaskCreationOptions.LongRunning"/>.
+    /// </summary>
+    /// <typeparam name="T">Result type.</typeparam>
+    /// <param name="task">Task.</param>
+    /// <returns>The started <see cref="Task{TResult}"/></returns>
+    public static Task<T> LongRunning<T>(this Task<T> task)
+    {
+        return Task.Factory.StartNew(async () =>
+        {
+            return await task;
+        }, TaskCreationOptions.LongRunning).Unwrap();
+    }
+
+    /// <summary>
+    /// Mark task as <see cref="TaskCreationOptions.LongRunning"/>.
+    /// </summary>
+    /// <param name="task">Task.</param>
+    /// <returns>The started <see cref="Task"/></returns>
+    public static Task LongRunning(this Task task)
+    {
+        return Task.Factory.StartNew(async () =>
+        {
+            await task;
+        }, TaskCreationOptions.LongRunning).Unwrap();
+    }
+
+    /// <summary>
+    /// Execute action periodically and asynchronously.
+    /// </summary>
+    /// <param name="onTick">Action to be executed.</param>
+    /// <param name="dueTime">Time to pass before starting to execute.</param>
+    /// <param name="interval">Interval between procs.</param>
+    /// <param name="token">Cancellation token used to cancel the cycle.</param>
+    /// <returns></returns>
+    public static async Task RunPeriodicAsync(this Action onTick, TimeSpan dueTime, TimeSpan interval, CancellationToken token)
+    {
+        if (dueTime > TimeSpan.Zero)
+        {
+            await Task.Delay(dueTime, token).ConfigureAwait(false);
+        }
+
+        while (!token.IsCancellationRequested)
+        {
+            onTick?.Invoke();
+            if (interval > TimeSpan.Zero)
+            {
+                await Task.Delay(interval, token).ConfigureAwait(false);
+            }
+        }
+    }
+
+    /// <summary>
+    /// Execute's an async Task<T> method which has a void return value synchronously
+    /// </summary>
+    /// <param name="task">Task<T> method to execute</param>
+    public static void RunSync(this Func<Task> task)
+    {
+        var oldContext = SynchronizationContext.Current;
+        var synch = new ExclusiveSynchronizationContext();
+        SynchronizationContext.SetSynchronizationContext(synch);
+        synch.Post(async _ =>
+        {
+            try
+            {
+                await task();
+            }
+            catch (Exception e)
+            {
+                synch.InnerException = e;
+                throw;
+            }
+            finally
+            {
+                synch.EndMessageLoop();
+            }
+        }, null);
+        synch.BeginMessageLoop();
+
+        SynchronizationContext.SetSynchronizationContext(oldContext);
+    }
+
+    /// <summary>
+    /// Execute's an async Task<T> method which has a T return type synchronously
+    /// </summary>
+    /// <typeparam name="T">Return Type</typeparam>
+    /// <param name="task">Task<T> method to execute</param>
+    /// <returns></returns>
+    public static T RunSync<T>(this Func<Task<T>> task)
+    {
+        var oldContext = SynchronizationContext.Current;
+        var synch = new ExclusiveSynchronizationContext();
+        SynchronizationContext.SetSynchronizationContext(synch);
+        var ret = default(T);
+        synch.Post(async _ =>
+        {
+            try
+            {
+                ret = await task();
+            }
+            catch (Exception e)
+            {
+                synch.InnerException = e;
+                throw;
+            }
+            finally
+            {
+                synch.EndMessageLoop();
+            }
+        }, null);
+        synch.BeginMessageLoop();
+        SynchronizationContext.SetSynchronizationContext(oldContext);
+        return ret;
+    }
+    
+    private class ExclusiveSynchronizationContext : SynchronizationContext
+    {
+        private bool done;
+        public Exception InnerException { get; set; }
+        readonly AutoResetEvent workItemsWaiting = new AutoResetEvent(false);
+        readonly Queue<Tuple<SendOrPostCallback, object>> items =
+            new Queue<Tuple<SendOrPostCallback, object>>();
+
+        public override void Send(SendOrPostCallback d, object state)
+        {
+            throw new NotSupportedException("We cannot send to our same thread");
+        }
+
+        public override void Post(SendOrPostCallback d, object state)
+        {
+            lock (this.items)
+            {
+                this.items.Enqueue(Tuple.Create(d, state));
+            }
+
+            this.workItemsWaiting.Set();
+        }
+
+        public void EndMessageLoop()
+        {
+            this.Post(_ => this.done = true, null);
+        }
+
+        public void BeginMessageLoop()
+        {
+            while (!this.done)
+            {
+                Tuple<SendOrPostCallback, object> task = null;
+                lock (this.items)
+                {
+                    if (this.items.Count > 0)
+                    {
+                        task = this.items.Dequeue();
+                    }
+                }
+
+                if (task != null)
+                {
+                    task.Item1(task.Item2);
+                    if (this.InnerException != null) // the method threw an exeption
+                    {
+                        throw new AggregateException("AsyncHelpers.Run method threw an exception.", this.InnerException);
+                    }
+                }
+                else
+                {
+                    this.workItemsWaiting.WaitOne();
+                }
+            }
+        }
+
+        public override SynchronizationContext CreateCopy()
+        {
+            return this;
+        }
+    }
+}

SystemExtensions.NetStandard/Extensions/Try.cs

@@ -0,0 +1,73 @@
+using System.Collections.Generic;
+
+namespace System.Extensions;
+
+public static class Try
+{
+    public static Try<TResult> Action<TResult>(Func<TResult> act)
+    {
+        return new Try<TResult>(act);
+    }
+}
+public class Try<TResult>
+{
+    private readonly Func<TResult> action;
+    private readonly List<Func<Exception, TResult>> catchActions = new List<Func<Exception, TResult>>();
+    internal Try(Func<TResult> action)
+    {
+        this.action = action;
+    }
+    public static Try<TResult> Action(Func<TResult> act)
+    {
+        return new Try<TResult>(act);
+    }
+
+    public Try<TResult> Catch<TException>(Func<TException, TResult> act) where TException : Exception
+    {
+        this.catchActions.Add((Func<Exception, TResult>)act);
+        return this;
+    }
+
+    public TResult Run()
+    {
+        try
+        {
+            return this.action();
+        }
+        catch (Exception ex)
+        {
+            foreach (var catchAction in this.catchActions)
+            {
+                return catchAction(ex);
+            }
+
+            throw;
+        }
+    }
+
+    public TResult Finally(Action act)
+    {
+        if (act is null)
+        {
+            throw new ArgumentNullException(nameof(act));
+        }
+
+        try
+        {
+            return this.action();
+        }
+        catch (Exception ex)
+        {
+            foreach (var catchAction in this.catchActions)
+            {
+                return catchAction(ex);
+            }
+
+            throw;
+        }
+        finally
+        {
+            act();
+        }
+    }
+}

SystemExtensions.NetStandard/Http/HttpClient.cs

@@ -0,0 +1,215 @@
+using System.IO;
+using System.Net.Http.Headers;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace System.Net.Http;
+
+public sealed class HttpClient<Tscope> : IHttpClient<Tscope>, IDisposable
+{
+    private readonly HttpClient httpClient;
+    private readonly Type scope;
+    private EventHandler<HttpClientEventMessage> eventEmitted;
+
+    public event EventHandler<HttpClientEventMessage> EventEmitted
+    {
+        add
+        {
+            this.eventEmitted += value;
+        }
+        remove
+        {
+            this.eventEmitted -= value;
+        }
+    }
+    public Uri BaseAddress { get => this.httpClient.BaseAddress; set => this.httpClient.BaseAddress = value; }
+    public HttpRequestHeaders DefaultRequestHeaders => this.httpClient.DefaultRequestHeaders;
+    public long MaxResponseContentBufferSize { get => this.httpClient.MaxResponseContentBufferSize; set => this.httpClient.MaxResponseContentBufferSize = value; }
+    public TimeSpan Timeout { get => this.httpClient.Timeout; set => this.httpClient.Timeout = value; }
+
+    public HttpClient()
+    {
+        this.httpClient = new HttpClient();
+        this.scope = typeof(Tscope);
+    }
+
+    public HttpClient(
+        HttpMessageHandler handler)
+    {
+        this.httpClient = new HttpClient(handler);
+        this.scope = typeof(Tscope);
+    }
+
+    public HttpClient(
+        HttpMessageHandler handler,
+        bool disposeHandler)
+    {
+        this.httpClient = new HttpClient(handler, disposeHandler);
+        this.scope = typeof(Tscope);
+    }
+
+    public void CancelPendingRequests()
+    {
+        this.LogInformation(string.Empty, "Canceling request");
+        this.httpClient.CancelPendingRequests();
+    }
+    public Task<HttpResponseMessage> DeleteAsync(string requestUri)
+    {
+        this.LogInformation(requestUri, nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> DeleteAsync(string requestUri, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri, nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri, cancellationToken);
+    }
+    public Task<HttpResponseMessage> DeleteAsync(Uri requestUri)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> DeleteAsync(Uri requestUri, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(DeleteAsync));
+        return this.httpClient.DeleteAsync(requestUri, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri)
+    {
+        this.LogInformation(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption)
+    {
+        this.LogInformation(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(string requestUri, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri, nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, completionOption, cancellationToken);
+    }
+    public Task<HttpResponseMessage> GetAsync(Uri requestUri, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetAsync));
+        return this.httpClient.GetAsync(requestUri, cancellationToken);
+    }
+    public Task<byte[]> GetByteArrayAsync(string requestUri)
+    {
+        this.LogInformation(requestUri, nameof(GetByteArrayAsync));
+        return this.httpClient.GetByteArrayAsync(requestUri);
+    }
+    public Task<byte[]> GetByteArrayAsync(Uri requestUri)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetByteArrayAsync));
+        return this.httpClient.GetByteArrayAsync(requestUri);
+    }
+    public Task<Stream> GetStreamAsync(string requestUri)
+    {
+        this.LogInformation(requestUri, nameof(GetStreamAsync));
+        return this.httpClient.GetStreamAsync(requestUri);
+    }
+    public Task<Stream> GetStreamAsync(Uri requestUri)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetStreamAsync));
+        return this.httpClient.GetStreamAsync(requestUri);
+    }
+    public Task<string> GetStringAsync(string requestUri)
+    {
+        this.LogInformation(requestUri, nameof(GetStringAsync));
+        return this.httpClient.GetStringAsync(requestUri);
+    }
+    public Task<string> GetStringAsync(Uri requestUri)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(GetStringAsync));
+        return this.httpClient.GetStringAsync(requestUri);
+    }
+    public Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content)
+    {
+        this.LogInformation(requestUri, nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri, nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(PostAsync));
+        return this.httpClient.PostAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content)
+    {
+        this.LogInformation(requestUri, nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri, nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content);
+    }
+    public Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken)
+    {
+        this.LogInformation(requestUri.ToString(), nameof(PutAsync));
+        return this.httpClient.PutAsync(requestUri, content, cancellationToken);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request)
+    {
+        this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption)
+    {
+        this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request, completionOption);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken)
+    {
+        this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request, completionOption, cancellationToken);
+    }
+    public Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        this.LogInformation(request.RequestUri.ToString(), nameof(SendAsync));
+        return this.httpClient.SendAsync(request, cancellationToken);
+    }
+    public void Dispose()
+    {
+        this.httpClient.Dispose();
+    }
+
+    private void LogInformation(string url, string method)
+    {
+        this.eventEmitted?.Invoke(this, new HttpClientEventMessage(this.scope, method, url));
+    }
+}

SystemExtensions.NetStandard/Http/HttpClientEventMessage.cs

@@ -0,0 +1,15 @@
+namespace System.Net.Http;
+
+public sealed class HttpClientEventMessage
+{
+    public Type Scope { get; }
+    public string Method { get; }
+    public string Url { get; }
+
+    internal HttpClientEventMessage(Type scope, string method, string url)
+    {
+        this.Scope = scope;
+        this.Method = method;
+        this.Url = url;
+    }
+}

SystemExtensions.NetStandard/Http/IHttpClient.cs

@@ -0,0 +1,47 @@
+using System.IO;
+using System.Net.Http.Headers;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace System.Net.Http;
+
+public interface IHttpClient<TScope>
+{
+    event EventHandler<HttpClientEventMessage> EventEmitted;
+    Uri BaseAddress { get; set; }
+    HttpRequestHeaders DefaultRequestHeaders { get; }
+    long MaxResponseContentBufferSize { get; set; }
+    TimeSpan Timeout { get; set; }
+
+    void CancelPendingRequests();
+    Task<HttpResponseMessage> DeleteAsync(string requestUri);
+    Task<HttpResponseMessage> DeleteAsync(string requestUri, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> DeleteAsync(Uri requestUri);
+    Task<HttpResponseMessage> DeleteAsync(Uri requestUri, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(string requestUri);
+    Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption);
+    Task<HttpResponseMessage> GetAsync(string requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(string requestUri, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri, HttpCompletionOption completionOption, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> GetAsync(Uri requestUri, CancellationToken cancellationToken);
+    Task<byte[]> GetByteArrayAsync(string requestUri);
+    Task<byte[]> GetByteArrayAsync(Uri requestUri);
+    Task<Stream> GetStreamAsync(string requestUri);
+    Task<Stream> GetStreamAsync(Uri requestUri);
+    Task<string> GetStringAsync(string requestUri);
+    Task<string> GetStringAsync(Uri requestUri);
+    Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content);
+    Task<HttpResponseMessage> PostAsync(string requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content);
+    Task<HttpResponseMessage> PostAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content);
+    Task<HttpResponseMessage> PutAsync(string requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content);
+    Task<HttpResponseMessage> PutAsync(Uri requestUri, HttpContent content, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken);
+    Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken);
+}

SystemExtensions.NetStandard/Logging/ScopedLogger.cs

@@ -0,0 +1,76 @@
+using Microsoft.Extensions.Logging;
+using System.Extensions;
+
+namespace System.Logging;
+
+public struct ScopedLogger<T>
+{
+    private readonly ILogger<T> logger;
+    private readonly string scope;
+    private readonly string flowId;
+
+    private ScopedLogger(ILogger<T> logger, string scope, string flowId)
+    {
+        this.logger = logger;
+        this.scope = scope;
+        this.flowId = flowId.IsNullOrWhiteSpace() ? string.Empty : $"[{flowId}] ";
+    }
+
+    public ScopedLogger<T> LogInformation(string message, params object[] parameters)
+    {
+        this.logger.LogInformation(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogDebug(string message, params object[] parameters)
+    {
+        this.logger.LogDebug(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogWarning(string message, params object[] parameters)
+    {
+        this.logger.LogWarning(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogError(string message, params object[] parameters)
+    {
+        this.logger.LogError(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogCritical(string message, params object[] parameters)
+    {
+        this.logger.LogCritical(this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogWarning(Exception e, string message, params object[] parameters)
+    {
+        this.logger.LogWarning(e, this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogError(Exception e, string message, params object[] parameters)
+    {
+        this.logger.LogError(e, this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    public ScopedLogger<T> LogCritical(Exception e, string message, params object[] parameters)
+    {
+        this.logger.LogCritical(e, this.CreateMessage(message), parameters);
+        return this;
+    }
+
+    private string CreateMessage(string message)
+    {
+        return $"{this.flowId}{this.scope}: {message}";
+    }
+
+    public static ScopedLogger<T> Create(ILogger<T> logger, string scope, string flowId)
+    {
+        return new ScopedLogger<T>(logger, scope.ThrowIfNull(nameof(scope)), flowId);
+    }
+}

SystemExtensions.NetStandard/Structures/BitStructures/Int32BitStruct.cs

@@ -0,0 +1,174 @@
+namespace System.Structures.BitStructures;
+
+public struct Int32BitStruct : IEquatable<Int32BitStruct>
+{
+    public Int32BitStruct(uint value) => this.Value = value;
+    public Int32BitStruct(int value) { unchecked { this.Value = (uint)value; } }
+    public uint Value { get; set; }
+    public uint Bit0 { get => this.Value & 0x1; set => this.Value = (this.Value & ~(0x1U) | (0x1 & value)); }
+    public uint Bit1 { get => this.Value >> 1 & 0x1; set => this.Value = (this.Value & ~(0x1U << 1)) | ((0x1 & value) << 1); }
+    public uint Bit2 { get => this.Value >> 2 & 0x1; set => this.Value = (this.Value & ~(0x1U << 2)) | ((0x1 & value) << 2); }
+    public uint Bit3 { get => this.Value >> 3 & 0x1; set => this.Value = (this.Value & ~(0x1U << 3)) | ((0x1 & value) << 3); }
+    public uint Bit4 { get => this.Value >> 4 & 0x1; set => this.Value = (this.Value & ~(0x1U << 4)) | ((0x1 & value) << 4); }
+    public uint Bit5 { get => this.Value >> 5 & 0x1; set => this.Value = (this.Value & ~(0x1U << 5)) | ((0x1 & value) << 5); }
+    public uint Bit6 { get => this.Value >> 6 & 0x1; set => this.Value = (this.Value & ~(0x1U << 6)) | ((0x1 & value) << 6); }
+    public uint Bit7 { get => this.Value >> 7 & 0x1; set => this.Value = (this.Value & ~(0x1U << 7)) | ((0x1 & value) << 7); }
+    public uint Bit8 { get => this.Value >> 8 & 0x1; set => this.Value = (this.Value & ~(0x1U << 8)) | ((0x1 & value) << 8); }
+    public uint Bit9 { get => this.Value >> 9 & 0x1; set => this.Value = (this.Value & ~(0x1U << 9)) | ((0x1 & value) << 9); }
+    public uint Bit10 { get => this.Value >> 10 & 0x1; set => this.Value = (this.Value & ~(0x1U << 10)) | ((0x1 & value) << 10); }
+    public uint Bit11 { get => this.Value >> 11 & 0x1; set => this.Value = (this.Value & ~(0x1U << 11)) | ((0x1 & value) << 11); }
+    public uint Bit12 { get => this.Value >> 12 & 0x1; set => this.Value = (this.Value & ~(0x1U << 12)) | ((0x1 & value) << 12); }
+    public uint Bit13 { get => this.Value >> 13 & 0x1; set => this.Value = (this.Value & ~(0x1U << 13)) | ((0x1 & value) << 13); }
+    public uint Bit14 { get => this.Value >> 14 & 0x1; set => this.Value = (this.Value & ~(0x1U << 14)) | ((0x1 & value) << 14); }
+    public uint Bit15 { get => this.Value >> 15 & 0x1; set => this.Value = (this.Value & ~(0x1U << 15)) | ((0x1 & value) << 15); }
+    public uint Bit16 { get => this.Value >> 16 & 0x1; set => this.Value = (this.Value & ~(0x1U << 16)) | ((0x1 & value) << 16); }
+    public uint Bit17 { get => this.Value >> 17 & 0x1; set => this.Value = (this.Value & ~(0x1U << 17)) | ((0x1 & value) << 17); }
+    public uint Bit18 { get => this.Value >> 18 & 0x1; set => this.Value = (this.Value & ~(0x1U << 18)) | ((0x1 & value) << 18); }
+    public uint Bit19 { get => this.Value >> 19 & 0x1; set => this.Value = (this.Value & ~(0x1U << 19)) | ((0x1 & value) << 19); }
+    public uint Bit20 { get => this.Value >> 20 & 0x1; set => this.Value = (this.Value & ~(0x1U << 20)) | ((0x1 & value) << 20); }
+    public uint Bit21 { get => this.Value >> 21 & 0x1; set => this.Value = (this.Value & ~(0x1U << 21)) | ((0x1 & value) << 21); }
+    public uint Bit22 { get => this.Value >> 22 & 0x1; set => this.Value = (this.Value & ~(0x1U << 22)) | ((0x1 & value) << 22); }
+    public uint Bit23 { get => this.Value >> 23 & 0x1; set => this.Value = (this.Value & ~(0x1U << 23)) | ((0x1 & value) << 23); }
+    public uint Bit24 { get => this.Value >> 24 & 0x1; set => this.Value = (this.Value & ~(0x1U << 24)) | ((0x1 & value) << 24); }
+    public uint Bit25 { get => this.Value >> 25 & 0x1; set => this.Value = (this.Value & ~(0x1U << 25)) | ((0x1 & value) << 25); }
+    public uint Bit26 { get => this.Value >> 26 & 0x1; set => this.Value = (this.Value & ~(0x1U << 26)) | ((0x1 & value) << 26); }
+    public uint Bit27 { get => this.Value >> 27 & 0x1; set => this.Value = (this.Value & ~(0x1U << 27)) | ((0x1 & value) << 27); }
+    public uint Bit28 { get => this.Value >> 28 & 0x1; set => this.Value = (this.Value & ~(0x1U << 28)) | ((0x1 & value) << 28); }
+    public uint Bit29 { get => this.Value >> 29 & 0x1; set => this.Value = (this.Value & ~(0x1U << 29)) | ((0x1 & value) << 29); }
+    public uint Bit30 { get => this.Value >> 30 & 0x1; set => this.Value = (this.Value & ~(0x1U << 30)) | ((0x1 & value) << 30); }
+    public uint Bit31 { get => this.Value >> 31 & 0x1; set => this.Value = (this.Value & ~(0x1U << 31)) | ((0x1 & value) << 31); }
+
+    public static implicit operator Int32BitStruct(uint value) => new Int32BitStruct(value);
+    public static implicit operator Int32BitStruct(int value) => new Int32BitStruct(value);
+    public static implicit operator int(Int32BitStruct value) => (int)value.Value;
+    public static implicit operator uint(Int32BitStruct value) => value.Value;
+    public static bool operator ==(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value == second.Value;
+    }
+
+    public static bool operator !=(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value != second.Value;
+    }
+
+    public static bool operator ==(Int32BitStruct first, uint second)
+    {
+        return first.Value == second;
+    }
+
+    public static bool operator !=(Int32BitStruct first, uint second)
+    {
+        return first.Value != second;
+    }
+
+    public static bool operator ==(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value == (uint)second;
+        }
+    }
+
+    public static bool operator !=(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value != (uint)second;
+        }
+    }
+
+    public static bool operator >=(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value >= second.Value;
+    }
+
+    public static bool operator <=(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value <= second.Value;
+    }
+
+    public static bool operator >=(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value >= (uint)second;
+        }
+    }
+
+    public static bool operator <=(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value <= (uint)second;
+        }
+    }
+
+    public static bool operator >=(Int32BitStruct first, uint second)
+    {
+        return first.Value >= second;
+    }
+
+    public static bool operator <=(Int32BitStruct first, uint second)
+    {
+        return first.Value <= second;
+    }
+
+    public static bool operator >(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value > second.Value;
+    }
+
+    public static bool operator <(Int32BitStruct first, Int32BitStruct second)
+    {
+        return first.Value < second.Value;
+    }
+
+    public static bool operator >(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value > (uint)second;
+        }
+    }
+
+    public static bool operator <(Int32BitStruct first, int second)
+    {
+        unchecked
+        {
+            return first.Value < (uint)second;
+        }
+    }
+
+    public static bool operator >(Int32BitStruct first, uint second)
+    {
+        return first.Value > second;
+    }
+
+    public static bool operator <(Int32BitStruct first, uint second)
+    {
+        return first.Value < second;
+    }
+
+    public bool Equals(Int32BitStruct other)
+    {
+        return this.Value == other.Value;
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is Int32BitStruct)
+        {
+            return this.Equals((Int32BitStruct)obj);
+        }
+        else
+        {
+            return base.Equals(obj);
+        }
+    }
+
+    public override int GetHashCode()
+    {
+        return (this.Value).GetHashCode();
+    }
+}

SystemExtensions.NetStandard/Structures/BitStructures/Int64BitStruct.cs

@@ -0,0 +1,204 @@
+using System;
+
+namespace System.Structures.BitStructures;
+
+public struct Int64BitStruct : IEquatable<Int64BitStruct>
+{
+    public Int64BitStruct(uint low, uint high)
+    {
+        this.Value = low + ((ulong)high << 32);
+    }
+
+    public Int64BitStruct(int low, int high)
+    {
+        unchecked
+        {
+            this.Value = (uint)low + ((ulong)high << 32);
+        }
+    }
+
+    public Int64BitStruct(long value)
+    {
+        unchecked
+        {
+            this.Value = (ulong)value;
+        }
+    }
+
+    public Int64BitStruct(ulong value)
+    {
+        this.Value = value;
+    }
+
+    public ulong Value { get; set; }
+    public uint Low { get => (uint)(this.Value & 0xFFFFFFFF); set => this.Value = (this.Value & ~(0xFFFFFFFF)) | (0xFFFFFFFF & value); }
+    public uint High { get => (uint)((this.Value >> 32) & 0xFFFFFFFF); set => this.Value = (this.Value & ~(0xFFFFFFFF00000000)) | ((ulong)(0xFFFFFFFF & value) << 32); }
+    public ulong Bit0 { get => this.Value & 0x1; set => this.Value = (this.Value & ~(0x1UL) | (0x1 & value)); }
+    public ulong Bit1 { get => this.Value >> 1 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 1)) | ((0x1 & value) << 1); }
+    public ulong Bit2 { get => this.Value >> 2 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 2)) | ((0x1 & value) << 2); }
+    public ulong Bit3 { get => this.Value >> 3 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 3)) | ((0x1 & value) << 3); }
+    public ulong Bit4 { get => this.Value >> 4 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 4)) | ((0x1 & value) << 4); }
+    public ulong Bit5 { get => this.Value >> 5 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 5)) | ((0x1 & value) << 5); }
+    public ulong Bit6 { get => this.Value >> 6 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 6)) | ((0x1 & value) << 6); }
+    public ulong Bit7 { get => this.Value >> 7 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 7)) | ((0x1 & value) << 7); }
+    public ulong Bit8 { get => this.Value >> 8 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 8)) | ((0x1 & value) << 8); }
+    public ulong Bit9 { get => this.Value >> 9 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 9)) | ((0x1 & value) << 9); }
+    public ulong Bit10 { get => this.Value >> 10 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 10)) | ((0x1 & value) << 10); }
+    public ulong Bit11 { get => this.Value >> 11 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 11)) | ((0x1 & value) << 11); }
+    public ulong Bit12 { get => this.Value >> 12 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 12)) | ((0x1 & value) << 12); }
+    public ulong Bit13 { get => this.Value >> 13 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 13)) | ((0x1 & value) << 13); }
+    public ulong Bit14 { get => this.Value >> 14 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 14)) | ((0x1 & value) << 14); }
+    public ulong Bit15 { get => this.Value >> 15 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 15)) | ((0x1 & value) << 15); }
+    public ulong Bit16 { get => this.Value >> 16 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 16)) | ((0x1 & value) << 16); }
+    public ulong Bit17 { get => this.Value >> 17 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 17)) | ((0x1 & value) << 17); }
+    public ulong Bit18 { get => this.Value >> 18 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 18)) | ((0x1 & value) << 18); }
+    public ulong Bit19 { get => this.Value >> 19 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 19)) | ((0x1 & value) << 19); }
+    public ulong Bit20 { get => this.Value >> 20 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 20)) | ((0x1 & value) << 20); }
+    public ulong Bit21 { get => this.Value >> 21 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 21)) | ((0x1 & value) << 21); }
+    public ulong Bit22 { get => this.Value >> 22 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 22)) | ((0x1 & value) << 22); }
+    public ulong Bit23 { get => this.Value >> 23 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 23)) | ((0x1 & value) << 23); }
+    public ulong Bit24 { get => this.Value >> 24 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 24)) | ((0x1 & value) << 24); }
+    public ulong Bit25 { get => this.Value >> 25 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 25)) | ((0x1 & value) << 25); }
+    public ulong Bit26 { get => this.Value >> 26 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 26)) | ((0x1 & value) << 26); }
+    public ulong Bit27 { get => this.Value >> 27 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 27)) | ((0x1 & value) << 27); }
+    public ulong Bit28 { get => this.Value >> 28 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 28)) | ((0x1 & value) << 28); }
+    public ulong Bit29 { get => this.Value >> 29 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 29)) | ((0x1 & value) << 29); }
+    public ulong Bit30 { get => this.Value >> 30 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 30)) | ((0x1 & value) << 30); }
+    public ulong Bit31 { get => this.Value >> 31 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 31)) | ((0x1 & value) << 31); }
+    public ulong Bit32 { get => this.Value >> 32 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 32)) | ((0x1 & value) << 32); }
+    public ulong Bit33 { get => this.Value >> 33 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 33)) | ((0x1 & value) << 33); }
+    public ulong Bit34 { get => this.Value >> 34 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 34)) | ((0x1 & value) << 34); }
+    public ulong Bit35 { get => this.Value >> 35 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 35)) | ((0x1 & value) << 35); }
+    public ulong Bit36 { get => this.Value >> 36 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 36)) | ((0x1 & value) << 36); }
+    public ulong Bit37 { get => this.Value >> 37 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 37)) | ((0x1 & value) << 37); }
+    public ulong Bit38 { get => this.Value >> 38 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 38)) | ((0x1 & value) << 38); }
+    public ulong Bit39 { get => this.Value >> 39 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 39)) | ((0x1 & value) << 39); }
+    public ulong Bit40 { get => this.Value >> 40 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 40)) | ((0x1 & value) << 40); }
+    public ulong Bit41 { get => this.Value >> 41 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 41)) | ((0x1 & value) << 41); }
+    public ulong Bit42 { get => this.Value >> 42 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 42)) | ((0x1 & value) << 42); }
+    public ulong Bit43 { get => this.Value >> 43 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 43)) | ((0x1 & value) << 43); }
+    public ulong Bit44 { get => this.Value >> 44 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 44)) | ((0x1 & value) << 44); }
+    public ulong Bit45 { get => this.Value >> 45 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 45)) | ((0x1 & value) << 45); }
+    public ulong Bit46 { get => this.Value >> 46 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 46)) | ((0x1 & value) << 46); }
+    public ulong Bit47 { get => this.Value >> 47 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 47)) | ((0x1 & value) << 47); }
+    public ulong Bit48 { get => this.Value >> 48 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 48)) | ((0x1 & value) << 48); }
+    public ulong Bit49 { get => this.Value >> 49 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 49)) | ((0x1 & value) << 49); }
+    public ulong Bit50 { get => this.Value >> 50 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 50)) | ((0x1 & value) << 50); }
+    public ulong Bit51 { get => this.Value >> 51 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 51)) | ((0x1 & value) << 51); }
+    public ulong Bit52 { get => this.Value >> 52 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 52)) | ((0x1 & value) << 52); }
+    public ulong Bit53 { get => this.Value >> 53 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 53)) | ((0x1 & value) << 53); }
+    public ulong Bit54 { get => this.Value >> 54 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 54)) | ((0x1 & value) << 54); }
+    public ulong Bit55 { get => this.Value >> 55 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 55)) | ((0x1 & value) << 55); }
+    public ulong Bit56 { get => this.Value >> 56 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 56)) | ((0x1 & value) << 56); }
+    public ulong Bit57 { get => this.Value >> 57 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 57)) | ((0x1 & value) << 57); }
+    public ulong Bit58 { get => this.Value >> 58 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 58)) | ((0x1 & value) << 58); }
+    public ulong Bit59 { get => this.Value >> 59 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 59)) | ((0x1 & value) << 59); }
+    public ulong Bit60 { get => this.Value >> 60 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 60)) | ((0x1 & value) << 60); }
+    public ulong Bit61 { get => this.Value >> 61 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 61)) | ((0x1 & value) << 61); }
+    public ulong Bit62 { get => this.Value >> 62 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 62)) | ((0x1 & value) << 62); }
+    public ulong Bit63 { get => this.Value >> 63 & 0x1; set => this.Value = (this.Value & ~(0x1UL << 63)) | ((0x1 & value) << 63); }
+
+    public static implicit operator Int64BitStruct(ulong value) => new Int64BitStruct(value);
+    public static implicit operator Int64BitStruct(long value) => new Int64BitStruct(value);
+    public static implicit operator long(Int64BitStruct value) => (long)value.Value;
+    public static implicit operator ulong(Int64BitStruct value) => value.Value;
+    public static bool operator ==(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value == second.Value;
+    }
+
+    public static bool operator !=(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value != second.Value;
+    }
+
+    public static bool operator ==(Int64BitStruct first, ulong second)
+    {
+        return first.Value == second;
+    }
+
+    public static bool operator !=(Int64BitStruct first, ulong second)
+    {
+        return first.Value != second;
+    }
+
+    public static bool operator ==(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value == (ulong)second;
+        }
+    }
+
+    public static bool operator !=(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value != (ulong)second;
+        }
+    }
+
+    public static bool operator >=(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value >= second.Value;
+    }
+
+    public static bool operator <=(Int64BitStruct first, Int64BitStruct second)
+    {
+        return first.Value <= second.Value;
+    }
+
+    public static bool operator >=(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value >= (ulong)second;
+        }
+    }
+
+    public static bool operator <=(Int64BitStruct first, long second)
+    {
+        unchecked
+        {
+            return first.Value <= (ulong)second;
+        }
+    }
+
+    public static bool operator >=(Int64BitStruct first, ulong second)
+    {
+        unchecked
+        {
+            return first.Value >= second;
+        }
+    }
+
+    public static bool operator <=(Int64BitStruct first, ulong second)
+    {
+        unchecked
+        {
+            return first.Value <= second;
+        }
+    }
+
+    public bool Equals(Int64BitStruct other)
+    {
+        return this.Value == other.Value;
+    }
+
+    public override bool Equals(object obj)
+    {
+        if (obj is Int64BitStruct)
+        {
+            return this.Equals((Int64BitStruct)obj);
+        }
+        else
+        {
+            return base.Equals(obj);
+        }
+    }
+
+    public override int GetHashCode()
+    {
+        return this.Value.GetHashCode();
+    }
+}

SystemExtensions.NetStandard/SystemExtensions.NetStandard.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+	<LangVersion>latest</LangVersion>
+    <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
+    <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
+    <RootNamespace>System</RootNamespace>
+    <Version>1.5</Version>
+    <Authors>Alexandru Macocian</Authors>
+    <RepositoryUrl>https://github.com/AlexMacocian/SystemExtensions</RepositoryUrl>
+    <Description>Extensions for the System namespace</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="../LICENSE">
+      <Pack>True</Pack>
+      <PackagePath></PackagePath>
+    </None>
+    <None Include="..\.editorconfig" Link=".editorconfig" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+  </ItemGroup>
+
+</Project>

SystemExtensions.NetStandard/Threading/AsyncLazy.cs

@@ -0,0 +1,26 @@
+using System.Runtime.CompilerServices;
+using System.Threading.Tasks;
+
+namespace System;
+
+/// <summary>
+/// Async implementation of <see cref="Lazy{T}"/>.
+/// </summary>
+/// <remarks>
+/// Credits: https://devblogs.microsoft.com/pfxteam/asynclazyt/
+/// </remarks>
+/// <typeparam name="T">Type of value to be returned.</typeparam>
+public sealed class AsyncLazy<T> : Lazy<Task<T>>
+{
+    public TaskAwaiter<T> GetAwaiter() => this.Value.GetAwaiter();
+
+    public AsyncLazy(Func<T> valueFactory)
+        : base(() => Task.Factory.StartNew(valueFactory))
+    {
+    }
+
+    public AsyncLazy(Func<Task<T>> taskFactory)
+        : base(() => Task.Factory.StartNew(() => taskFactory()).Unwrap())
+    {
+    }
+}

SystemExtensions.NetStandard/Threading/PriorityThreadPool.cs

@@ -0,0 +1,577 @@
+using System.Collections.Generic;
+
+namespace System.Threading;
+
+/// <summary>
+/// Threadpool implementation that uses a priority queue as the queue for the tasks to execute.
+/// Features both an automated algorithm to calibrate the number of active threads and a Constructor for constructing
+/// a threadpool manually, without the auto-managed pool algorithm.
+/// </summary>
+public class PriorityThreadPool : IDisposable
+{
+    private class QueueEntry : IComparable<QueueEntry>
+    {
+        public TaskPriority TaskPriority { get; }
+        public WaitCallback WaitCallback { get; }
+        public object Object { get; }
+        public QueueEntry(TaskPriority priority, WaitCallback callback, object obj)
+        {
+            this.TaskPriority = priority;
+            this.WaitCallback = callback;
+            this.Object = obj;
+        }
+
+        public int CompareTo(QueueEntry other)
+        {
+            int priority1 = 0, priority2 = 0;
+            switch (this.TaskPriority)
+            {
+                case TaskPriority.Highest:
+                    priority1 = 4;
+                    break;
+                case TaskPriority.AboveNormal:
+                    priority1 = 3;
+                    break;
+                case TaskPriority.Normal:
+                    priority1 = 2;
+                    break;
+                case TaskPriority.BelowNormal:
+                    priority1 = 1;
+                    break;
+                case TaskPriority.Lowest:
+                    priority1 = 0;
+                    break;
+            }
+
+            switch (other.TaskPriority)
+            {
+                case TaskPriority.Highest:
+                    priority2 = 4;
+                    break;
+                case TaskPriority.AboveNormal:
+                    priority2 = 3;
+                    break;
+                case TaskPriority.Normal:
+                    priority2 = 2;
+                    break;
+                case TaskPriority.BelowNormal:
+                    priority2 = 1;
+                    break;
+                case TaskPriority.Lowest:
+                    priority2 = 0;
+                    break;
+            }
+
+            if (priority1 == priority2)
+            {
+                return 0;
+            }
+            else if (priority1 > priority2)
+            {
+                return -1;
+            }
+            else
+            {
+                return 1;
+            }
+        }
+    }
+
+    #region Enum
+    /// <summary>
+    /// Enum for priority of task scheduled
+    /// </summary>
+    public enum TaskPriority
+    {
+        /// <summary>
+        /// Highest priority of a task.
+        /// </summary>
+        Highest,
+        /// <summary>
+        /// Priority level above the default level.
+        /// </summary>
+        AboveNormal,
+        /// <summary>
+        /// Default priority level of all tasks without a specified priority level.
+        /// </summary>
+        Normal,
+        /// <summary>
+        /// Priority level below the default level.
+        /// </summary>
+        BelowNormal,
+        /// <summary>
+        /// Lowest priority level.
+        /// </summary>
+        Lowest
+    }
+    #endregion
+    #region Fields
+    /// <summary>
+    /// List that contains current running threads and their status.
+    /// </summary>
+    private volatile List<WorkerThread> threadpool;
+    private volatile PriorityQueue<QueueEntry> tasks;
+    private Thread observer;
+    private CancellationTokenSource observerCancellationTokenSource = new CancellationTokenSource();
+    private readonly object tasksLock = new object();
+    private struct WorkerThread
+    {
+        public Thread Thread { get; set; }
+        public bool Running { get; set; }
+        public bool Working { get; set; }
+        public CancellationTokenSource CancellationTokenSource { get; set; }
+    }
+    private struct Statistics
+    {
+        public bool Initialized { get; set; }
+        public int PerformanceCounter { get; set; }
+        public DateTime LastUpdate { get; set; }
+        public double LoopFrequency { get; set; }
+    }
+    #endregion
+    #region Properties
+    /// <summary>
+    /// Returns the number of active threads in the threadpool.
+    /// </summary>
+    public int NumberOfThreads
+    {
+        get
+        {
+            return this.threadpool is null ? 0 : this.threadpool.Count;
+        }
+    }
+    /// <summary>
+    /// Returns true if there are no tasks queued.
+    /// </summary>
+    public bool Empty
+    {
+        get
+        {
+            return this.tasks is null ? true : this.tasks.Count == 0;
+        }
+    }
+    /// <summary>
+    /// Maximum amount of threads that the pool can utilize
+    /// </summary>
+    public int MaxThreads { set; get; }
+    #endregion
+    #region Constructors
+    /// <summary>
+    /// Constructor that initializes a threadpool using default values. All threads run at the same priority.
+    /// The maximum number of threads is equal to System.Environment.ProcessorCount
+    /// </summary>
+    public PriorityThreadPool()
+    {
+        this.threadpool = new List<WorkerThread>();
+        this.tasks = new PriorityQueue<QueueEntry>();
+        this.MaxThreads = System.Environment.ProcessorCount;
+        for (var i = 0; i < this.MaxThreads; i++)
+        {
+            this.CreateAndStartWorkerThread();
+        }
+
+        this.observer = new Thread(() => this.ObserverLoop())
+        {
+            Name = "ThreadPool ObserverThread",
+            Priority = ThreadPriority.BelowNormal
+        };
+        this.observer.Start();
+    }
+    /// <summary>
+    /// Constructor that initializes a threadpool with a number of threads, all of the same priority.
+    /// </summary>
+    /// <param name="maxThreads">Maximum number of threads</param>
+    public PriorityThreadPool(int maxThreads)
+    {
+        this.threadpool = new List<WorkerThread>();
+        this.tasks = new PriorityQueue<QueueEntry>();
+        this.MaxThreads = Math.Max(maxThreads, 1);
+        for (var i = 0; i < maxThreads; i++)
+        {
+            this.CreateAndStartWorkerThread();
+        }
+
+        this.observer = new Thread(() => this.ObserverLoop());
+        this.observer.Name = "ThreadPool ObserverThread";
+        this.observer.Priority = ThreadPriority.BelowNormal;
+        this.observer.Start();
+    }
+    /// <summary>
+    /// Constructor for a manually-configured threadpool that runs a specified number of threads.
+    /// This threadpool with not be automatically managed and will always run the specified amount of threads
+    /// </summary>
+    /// <param name="lowest">Number of threads with Lowest priority.</param>
+    /// <param name="belowNormal">Number of threads with BelowNormal priority.</param>
+    /// <param name="normal">Number of threads with Normal priority.</param>
+    /// <param name="aboveNormal">Number of threads with AboveNormal priority.</param>
+    /// <param name="highest">Number of threads with Highest priority.</param>
+    public PriorityThreadPool(int lowest, int belowNormal, int normal, int aboveNormal, int highest)
+    {
+        this.threadpool = new List<WorkerThread>();
+        this.tasks = new PriorityQueue<QueueEntry>();
+        for (var i = 0; i < lowest; i++)
+        {
+            this.CreateAndStartWorkerThread(ThreadPriority.Lowest);
+        }
+
+        for (var i = 0; i < belowNormal; i++)
+        {
+            this.CreateAndStartWorkerThread(ThreadPriority.BelowNormal);
+        }
+
+        for (var i = 0; i < normal; i++)
+        {
+            this.CreateAndStartWorkerThread(ThreadPriority.Normal);
+        }
+
+        for (var i = 0; i < aboveNormal; i++)
+        {
+            this.CreateAndStartWorkerThread(ThreadPriority.AboveNormal);
+        }
+
+        for (var i = 0; i < highest; i++)
+        {
+            this.CreateAndStartWorkerThread(ThreadPriority.Highest);
+        }
+    }
+    #endregion
+    #region Public Methods
+    /// <summary>
+    /// Add a work item into the queue.
+    /// </summary>
+    /// <param name="waitCallback">WaitCallBack delegate that will be invoked by the threads.</param>
+    /// <param name="callbackState">State used as parameter during invoke.</param>
+    /// <param name="taskPriority">Priority of task. Affects its position into the queue.</param>
+    public void QueueUserWorkItem(WaitCallback waitCallback, object callbackState, TaskPriority taskPriority)
+    {
+        while (!Monitor.TryEnter(this.tasksLock))
+        {
+            ;
+        }
+
+        this.tasks.Enqueue(new QueueEntry(taskPriority, waitCallback, callbackState));
+        Monitor.Exit(this.tasksLock);
+    }
+    /// <summary>
+    /// Add a work item into the queue.
+    /// </summary>
+    /// <param name="waitCallback">WaitCallBack delegate that will be invoked by the threads.</param>
+    /// <param name="callbackState">State used as parameter during invoke.</param>
+    public void QueueUserWorkItem(WaitCallback waitCallback, object callbackState)
+    {
+        this.QueueUserWorkItem(waitCallback, callbackState, TaskPriority.Normal);
+    }
+    #endregion
+    #region Private Methods
+    private void CreateAndStartWorkerThread(ThreadPriority threadPriority)
+    {
+        var worker = new WorkerThread();
+        worker.Thread = new Thread(() => this.ThreadMainLoop(ref worker));
+        worker.Thread.Name = "ThreadPool WorkerThread";
+        worker.Thread.Priority = threadPriority;
+        worker.Running = true;
+        worker.CancellationTokenSource = new CancellationTokenSource();
+        worker.Thread.Start();
+        this.threadpool.Add(worker);
+    }
+    private void CreateAndStartWorkerThread()
+    {
+        var worker = new WorkerThread();
+        worker.Thread = new Thread(() => this.ThreadMainLoop(ref worker));
+        worker.Thread.Name = "ThreadPool WorkerThread";
+        worker.Running = true;
+        worker.CancellationTokenSource = new CancellationTokenSource();
+        worker.Thread.Start();
+        this.threadpool.Add(worker);
+    }
+    /// <summary>
+    /// Main loop that a thread from the pool is running.
+    /// </summary>
+    /// <threadId>Id of thread</threadId>
+    private void ThreadMainLoop(ref WorkerThread thisWorkerThread)
+    {
+        thisWorkerThread.Running = true;
+        while (thisWorkerThread.Running)
+        {
+            if (thisWorkerThread.CancellationTokenSource.Token.IsCancellationRequested)
+            {
+                thisWorkerThread.Running = false;
+                return;
+            }
+
+            //Check if there are tasks
+            if (this.tasks.Count > 0)
+            {
+                //If there are tasks, acquire a lock onto the list
+                //and try to dequeue the highest priority task.
+                //Finally, release the lock and invoke the task.
+
+                thisWorkerThread.Working = true;
+                QueueEntry task = null;
+                while (!Monitor.TryEnter(this.tasksLock))
+                {
+                    ;
+                }
+
+                if (this.tasks.Count > 0)
+                {
+                    task = this.tasks.Dequeue();
+                }
+
+                Monitor.Exit(this.tasksLock);
+                if (task != null)
+                {
+                    System.Diagnostics.Debug.WriteLine(Thread.CurrentThread.Name + " - Running task!");
+                    var waitCallback = task.WaitCallback;
+                    waitCallback.Invoke(task.Object);
+                }
+
+                thisWorkerThread.Working = false;
+            }
+        }
+    }
+    /// <summary>
+    /// Loop of the thread that adjusts and manipulates the threadpool
+    /// </summary>
+    private void ObserverLoop()
+    {
+        var statistics = new Statistics();
+        while (true)
+        {
+            //Observer operates on a 100ms loop. Due to the low priority of the thread itself, this loop will almost always take
+            //considerably longer than 100ms.
+            //Checks if the queue is empty. If yes, counter is decremented, else, counter is incremented.
+            //If counter exceeds 5, it will try to add another thread to the thread, unless the threadpool has reached max size.
+            //If counter is under -10, it will try to remove a thread from the threadpool, unless the threadpool has reached less than 
+            //max size / 4.
+
+            if (this.observerCancellationTokenSource.Token.IsCancellationRequested)
+            {
+                return;
+            }
+
+            //This part of code updates the statistics of the threadpool.
+            if (statistics.Initialized)
+            {
+                var loopDuration = (DateTime.Now - statistics.LastUpdate).TotalMilliseconds;
+                if (statistics.LoopFrequency == 0)
+                {
+                    statistics.LoopFrequency = loopDuration;
+                }
+                else
+                {
+                    statistics.LoopFrequency = (statistics.LoopFrequency + loopDuration) / 2;
+                }
+            }
+            else
+            {
+                statistics.Initialized = true;
+            }
+
+            statistics.LastUpdate = DateTime.Now;
+
+            Thread.Sleep(100);
+
+
+            //This part of code adjusts the performance counter. Ideally, the value should be 0.
+            if (this.tasks.Count > 0)
+            {
+                statistics.PerformanceCounter++;
+                if (statistics.PerformanceCounter > 5)
+                {
+                    statistics.PerformanceCounter = 5;
+                }
+            }
+            else
+            {
+                statistics.PerformanceCounter--;
+                if (statistics.PerformanceCounter < -10)
+                {
+                    statistics.PerformanceCounter = -10;
+                }
+            }
+
+            //This part of code adjusts thread priorities based on the current performance of the threadpool
+            if (this.tasks.Count > 0)
+            {
+                //If there are tasks pending, find a thread with priority under Normal and upgrade its priority.
+                var t = this.FindThreadWithLowPriority();
+                if (t != null)
+                {
+                    this.UpgradeThreadPriority(t);
+                }
+            }
+            else
+            {
+                //If there are no tasks pending, find a thread with priority above Lowest and downgrade its priority.
+                var t = this.FindThreadWithAcceptablePriority();
+                if (t != null)
+                {
+                    this.DowngradeThreadPriority(t);
+                }
+            }
+
+
+            //This part of code modifies the number of active threads based on the current performance of the threadpool
+            if (statistics.PerformanceCounter >= 5)
+            {
+                if (this.threadpool.Count < this.MaxThreads)
+                {
+                    //Add a thread to the threadpool.
+                    //Reset counter to 0.
+                    statistics.PerformanceCounter = 0;
+                    this.CreateAndStartWorkerThread();
+                }
+            }
+            else if (statistics.PerformanceCounter <= -10)
+            {
+                if (this.threadpool.Count > this.MaxThreads / 4)
+                {
+                    //Remove the last thread in the threadpool.
+                    //If thread is currently working, notify it to close.
+                    //Else, abort the thread.
+                    //Reset counter to 0.
+                    var worker = this.threadpool[this.threadpool.Count - 1];
+                    if (worker.Working)
+                    {
+                        worker.Running = false;
+                    }
+                    else
+                    {
+                        worker.CancellationTokenSource.Cancel();
+                    }
+
+                    this.threadpool.RemoveAt(this.threadpool.Count - 1);
+                    statistics.PerformanceCounter = 0;
+                }
+            }
+        }
+    }
+    /// <summary>
+    /// Find a thread with Lowest or BelowNormal priority.
+    /// </summary>
+    /// <returns>Thread with low priority.</returns>
+    private Thread FindThreadWithLowPriority()
+    {
+        foreach (var t in this.threadpool)
+        {
+            if (t.Thread.Priority == ThreadPriority.Lowest || t.Thread.Priority == ThreadPriority.BelowNormal)
+            {
+                return t.Thread;
+            }
+        }
+
+        return null;
+    }
+    /// <summary>
+    /// Find a thread with BelowNormal or Normal priority.
+    /// </summary>
+    /// <returns>Thread with BelowNormal or Normal priority.</returns>
+    private Thread FindThreadWithAcceptablePriority()
+    {
+        foreach (var t in this.threadpool)
+        {
+            if (t.Thread.Priority == ThreadPriority.Normal || t.Thread.Priority == ThreadPriority.BelowNormal)
+            {
+                return t.Thread;
+            }
+        }
+
+        return null;
+    }
+    /// <summary>
+    /// Downgrades the priority of a thread one level.
+    /// </summary>
+    /// <param name="t">Thread to have its priority level downgraded.</param>
+    /// <returns></returns>
+    private void DowngradeThreadPriority(Thread t)
+    {
+        switch (t.Priority)
+        {
+            case ThreadPriority.Highest:
+                t.Priority = ThreadPriority.AboveNormal;
+                break;
+            case ThreadPriority.AboveNormal:
+                t.Priority = ThreadPriority.Normal;
+                break;
+            case ThreadPriority.Normal:
+                t.Priority = ThreadPriority.BelowNormal;
+                break;
+            case ThreadPriority.BelowNormal:
+                t.Priority = ThreadPriority.Lowest;
+                break;
+            case ThreadPriority.Lowest:
+                t.Priority = ThreadPriority.Lowest;
+                break;
+        }
+    }
+    /// <summary>
+    /// Upgrades the priority of a thread one level.
+    /// </summary>
+    /// <param name="t">Thread to have its priority level upgraded.</param>
+    /// <returns></returns>
+    private void UpgradeThreadPriority(Thread t)
+    {
+        switch (t.Priority)
+        {
+            case ThreadPriority.Highest:
+                t.Priority = ThreadPriority.Highest;
+                break;
+            case ThreadPriority.AboveNormal:
+                t.Priority = ThreadPriority.Highest;
+                break;
+            case ThreadPriority.Normal:
+                t.Priority = ThreadPriority.AboveNormal;
+                break;
+            case ThreadPriority.BelowNormal:
+                t.Priority = ThreadPriority.Normal;
+                break;
+            case ThreadPriority.Lowest:
+                t.Priority = ThreadPriority.BelowNormal;
+                break;
+        }
+    }
+    #endregion
+    #region IDisposable Support
+    private bool disposedValue = false;
+    /// <summary>
+    /// Disposes of the tasks as well as aborts all threads. Called by the public Dispose() method.
+    /// </summary>
+    /// <param name="disposing"></param>
+    protected virtual void Dispose(bool disposing)
+    {
+        if (!this.disposedValue)
+        {
+            if (disposing)
+            {
+                if (this.observer != null)
+                {
+                    this.observerCancellationTokenSource.Cancel();
+                    this.observer.Join();
+                }
+
+                foreach (var worker in this.threadpool)
+                {
+                    worker.CancellationTokenSource.Cancel();
+                    worker.Thread.Join();
+                }
+
+                this.threadpool.Clear();
+                this.tasks.Clear();
+            }
+
+            this.threadpool = null;
+            this.tasks = null;
+            this.observer = null;
+            this.disposedValue = true;
+        }
+    }
+    /// <summary>
+    /// Disposes of the tasks as well as aborts all threads.
+    /// </summary>
+    public void Dispose()
+    {
+        this.Dispose(true);
+    }
+    #endregion
+}

SystemExtensions.Tests/Collections/AVLTreeTests.cs

@@ -0,0 +1,159 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.IO;
+
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class AVLTreeTests
+{
+    private AVLTree<int> avlTree = new AVLTree<int>();
+    [TestMethod()]
+    public void AVLTreeTest()
+    {
+        this.avlTree = new AVLTree<int>();
+    }
+
+    [TestMethod()]
+    public void AddTest()
+    {
+        try
+        {
+            for (var i = 0; i < 100; i++)
+            {
+                this.avlTree.Add(i * 20 - (50 + i));
+            }
+        }
+        catch (Exception e)
+        {
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
+        }
+
+        if (this.avlTree.Count != 100)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        if (!this.avlTree.Contains(50))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void RemoveTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        this.avlTree.Remove(50);
+
+        if (this.avlTree.Contains(50))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        this.avlTree.Clear();
+        if(this.avlTree.Count > 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void CopyToTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        var array = new int[100];
+        this.avlTree.CopyTo(array, 0);
+    }
+
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        var count = 0;
+        foreach(var value in this.avlTree)
+        {
+            count++;
+            System.Diagnostics.Debug.WriteLine(value);
+        }
+
+        if(count != this.avlTree.Count)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        _ = this.avlTree.ToArray();
+    }
+
+    [TestMethod()]
+    public void Serialize()
+    {
+        var avlTree2 = new AVLTree<int>();
+        for (var i = 0; i < 100; i++)
+        {
+            this.avlTree.Add(i);
+        }
+
+        var serializer = new BinaryFormatter();
+        using (var stream = new MemoryStream())
+        {
+            serializer.Serialize(stream, this.avlTree);
+            stream.Position = 0;
+            avlTree2 = (AVLTree<int>)serializer.Deserialize(stream);
+        }
+
+        var avlTreeEnum = this.avlTree.GetEnumerator();
+        var avlTree2Enum = avlTree2.GetEnumerator();
+        
+        for(var i = 0; i < 100; i++)
+        {
+            if(avlTreeEnum.Current != avlTree2Enum.Current)
+            {
+                Assert.Fail();
+            }
+
+            avlTreeEnum.MoveNext();
+            avlTree2Enum.MoveNext();
+        }
+    }
+}

SystemExtensions.Tests/Collections/BinaryHeapTests.cs

@@ -0,0 +1,213 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.IO;
+
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class BinaryHeapTests
+{
+    private BinaryHeap<int> binaryHeap = new BinaryHeap<int>();
+    [TestMethod()]
+    public void BinaryHeapTest()
+    {
+        this.binaryHeap = new BinaryHeap<int>();
+    }
+
+    [TestMethod()]
+    public void BinaryHeapTest1()
+    {
+        this.binaryHeap = new BinaryHeap<int>(100);
+        if (this.binaryHeap.Count != 0 && this.binaryHeap.Capacity != 100)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    [Timeout(500)]
+    public void InsertTest()
+    {
+        try
+        {
+            for (var i = 0; i < 100; i++)
+            {
+                this.binaryHeap.Add(i * 20 - (50 + i));
+            }
+        }
+        catch (Exception e)
+        {
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
+        }
+
+        if (this.binaryHeap.Count != 100)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    [Timeout(500)]
+    public void DeleteMinTest()
+    {
+        try
+        {
+            var tries = this.binaryHeap.Count;
+            while (this.binaryHeap.Count > 0)
+            {
+                if (tries == 0)
+                {
+                    Assert.Fail();
+                }
+
+                System.Diagnostics.Debug.WriteLine(this.binaryHeap.Remove());
+                tries--;
+            }
+        }
+        catch (Exception e)
+        {
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
+        }
+    }
+
+    [TestMethod()]
+    public void MinMaxTest()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        if (this.binaryHeap.Min != 0 || this.binaryHeap.Max != 999)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        for (var i = 0; i < 100; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        this.binaryHeap.Clear();
+        if (this.binaryHeap.Count > 0 || this.binaryHeap.Capacity != 160)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest2()
+    {
+        for (var i = 100; i < 200; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        this.binaryHeap.Clear(false);
+        var array = this.binaryHeap.ToArray();
+        if (this.binaryHeap.Count > 0 || this.binaryHeap.Capacity == 10)
+        {
+            Assert.Fail();
+        }
+
+        if (array.Length != 0)
+        {
+            Assert.Fail();
+        }
+
+        this.binaryHeap.Clear(true);
+        if (this.binaryHeap.Capacity != 10 || this.binaryHeap.Count != 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        this.binaryHeap.Add(100);
+        if (!this.binaryHeap.Contains(100))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for(var i = 0; i < 1000; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        var array = this.binaryHeap.ToArray();
+        if(array.Length != this.binaryHeap.Count)
+        {
+            Assert.Fail();
+        }
+
+        if(array[0] != 0 && array[999] != 999)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        var count = 0;
+        foreach(var value in this.binaryHeap)
+        {
+            System.Diagnostics.Debug.WriteLine(value);
+            count++;
+        }
+
+        if(count == this.binaryHeap.Count)
+        {
+            return;
+        }
+
+        Assert.Fail();
+    }
+
+    [TestMethod()]
+    public void Serialize()
+    {
+        var binaryHeap2 = new BinaryHeap<int>();
+        for (var i = 0; i < 100; i++)
+        {
+            this.binaryHeap.Add(i);
+        }
+
+        var serializer = new BinaryFormatter();
+        using (var stream = new MemoryStream()) {
+            serializer.Serialize(stream, this.binaryHeap);
+            stream.Position = 0;
+            binaryHeap2 = (BinaryHeap<int>)serializer.Deserialize(stream);
+        }
+
+        var binaryHeapEnum = this.binaryHeap.GetEnumerator();
+        var binaryHeapEnum2 = binaryHeap2.GetEnumerator();
+
+        for (var i = 0; i < 100; i++)
+        {
+            if (binaryHeapEnum.Current != binaryHeapEnum2.Current)
+            {
+                Assert.Fail();
+            }
+
+            binaryHeapEnum.MoveNext();
+            binaryHeapEnum2.MoveNext();
+        }
+    }
+}

SystemExtensions.Tests/Collections/FibonacciHeapTests.cs

@@ -0,0 +1,212 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.IO;
+
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class FibonacciHeapTests
+{
+    FibonacciHeap<int> fibonacciHeap = new FibonacciHeap<int>();
+    [TestMethod()]
+    public void InsertTest()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+    }
+
+    [TestMethod()]
+    public void FibonacciHeapTest()
+    {
+        this.fibonacciHeap = new FibonacciHeap<int>();
+        if(this.fibonacciHeap.Count != 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void MergeTest()
+    {
+        var fibonacciHeap1 = new FibonacciHeap<int>();
+        var fibonacciHeap2 = new FibonacciHeap<int>();
+
+        for(var i = 0; i < 100; i++)
+        {
+            fibonacciHeap1.Add(i);
+        }
+
+        for(var i = 100; i < 300; i++)
+        {
+            fibonacciHeap2.Add(i);
+        }
+
+        fibonacciHeap1.Merge(fibonacciHeap2);
+        for(var i = 1; i < 300; i++)
+        {
+            if (!fibonacciHeap1.Contains(i))
+            {
+                Assert.Fail();
+            }
+        }
+    }
+
+    [TestMethod()]
+    public void RemoveMinimumTest()
+    {
+        try
+        {
+            this.fibonacciHeap.Remove();
+            Assert.Fail();
+        }
+        catch (IndexOutOfRangeException)
+        {
+
+        }
+        catch (Exception)
+        {
+            Assert.Fail();
+        }
+
+        for (var i = 0; i < 1000; i++)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+
+        for (var i = 0; i < 1000; i++)
+        {
+            if (this.fibonacciHeap.Remove() != i)
+            {
+                Assert.Fail();
+            }
+        }
+    }
+
+    [TestMethod()]
+    public void DecreaseKeyTest()
+    {
+        this.fibonacciHeap.Add(5);
+        this.fibonacciHeap.Add(10);
+        this.fibonacciHeap.Add(7);
+        this.fibonacciHeap.DecreaseKey(5, 3);
+        if(this.fibonacciHeap.Contains(5) || !this.fibonacciHeap.Contains(3))
+        {
+            Assert.Fail();
+        }
+
+        this.fibonacciHeap.DecreaseKey(10, 1);
+        if(this.fibonacciHeap.Remove() != 1)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        for(var i = 0; i < 10000; i++)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+
+        if (!this.fibonacciHeap.Contains(5124))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        for(var i = 0; i < 10000; i++)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+
+        this.fibonacciHeap.Remove();
+        this.fibonacciHeap.Clear();
+        if(this.fibonacciHeap.Count > 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for(var i = 999; i >= 0; i--)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+
+        this.fibonacciHeap.Remove();
+        var arr = this.fibonacciHeap.ToArray();
+
+        for(var i = 1; i < 512; i++)
+        {
+            if(arr[i - 1] != i)
+            {
+                Assert.Fail();
+            }
+        }
+    }
+    
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 999; i >= 0; i--)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+
+        var count = 0;
+
+        foreach(var value in this.fibonacciHeap)
+        {
+            System.Diagnostics.Debug.WriteLine(value);
+            count++;
+        }
+
+        if(count == this.fibonacciHeap.Count)
+        {
+            return;
+        }
+
+        Assert.Fail();
+    }
+
+    [TestMethod()]
+    public void Serialize()
+    {
+        var fibonacciHeap2 = new FibonacciHeap<int>();
+        for (var i = 0; i < 100; i++)
+        {
+            this.fibonacciHeap.Add(i);
+        }
+
+        var serializer = new BinaryFormatter();
+        using (var stream = new MemoryStream())
+        {
+            serializer.Serialize(stream, this.fibonacciHeap);
+            stream.Position = 0;
+            fibonacciHeap2 = (FibonacciHeap<int>)serializer.Deserialize(stream);
+        }
+
+        var enum1 = this.fibonacciHeap.GetEnumerator();
+        var enum2 = fibonacciHeap2.GetEnumerator();
+
+        for (var i = 0; i < 100; i++)
+        {
+            if (enum1.Current != enum2.Current)
+            {
+                Assert.Fail();
+            }
+
+            enum1.MoveNext();
+            enum2.MoveNext();
+        }
+    }
+}

SystemExtensions.Tests/Collections/PriorityQueueTests.cs

@@ -0,0 +1,116 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.IO;
+
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class PriorityQueueTests
+{
+    private PriorityQueue<int> priorityQueue = new PriorityQueue<int>();
+    [TestMethod()]
+    public void PriorityQueueTest()
+    {
+        try
+        {
+            this.priorityQueue = new PriorityQueue<int>();
+            if(this.priorityQueue.Count > 0)
+            {
+                Assert.Fail();
+            }
+        }
+        catch(Exception e)
+        {
+            Assert.Fail(e.Message + "\n" + e.StackTrace);
+        }
+    }
+
+    [TestMethod()]
+    public void EnqueueTest()
+    {
+        for(var i = 0; i < 100; i++)
+        {
+            this.priorityQueue.Enqueue(i);
+        }
+
+        if(this.priorityQueue.Count != 100)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void DequeueTest()
+    {
+        for(var i = 0; i < 100; i++)
+        {
+            this.priorityQueue.Enqueue(i);
+        }
+
+        for(var i = 0; i < 100; i++)
+        {
+            if(i != this.priorityQueue.Dequeue())
+            {
+                Assert.Fail();
+            }
+        }
+
+        if(this.priorityQueue.Count > 0)
+        {
+            Assert.Fail();
+        }
+
+        try
+        {
+            this.priorityQueue.Dequeue();
+            Assert.Fail();
+        }
+        catch
+        {
+
+        }
+    }
+
+    [TestMethod()]
+    public void PeekTest()
+    {
+        this.priorityQueue.Enqueue(1051);
+        if(this.priorityQueue.Peek() != 1051 && this.priorityQueue.Count != 1)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void Serialize()
+    {
+        var priorityQueue2 = new PriorityQueue<int>();
+        for (var i = 0; i < 100; i++)
+        {
+            this.priorityQueue.Enqueue(i);
+        }
+
+        var serializer = new BinaryFormatter();
+        using (var stream = new MemoryStream())
+        {
+            serializer.Serialize(stream, this.priorityQueue);
+            stream.Position = 0;
+            priorityQueue2 = (PriorityQueue<int>)serializer.Deserialize(stream);
+        }
+
+        var enum1 = this.priorityQueue.GetEnumerator();
+        var enum2 = priorityQueue2.GetEnumerator();
+
+        for (var i = 0; i < 100; i++)
+        {
+            if (enum1.Current != enum2.Current)
+            {
+                Assert.Fail();
+            }
+
+            enum1.MoveNext();
+            enum2.MoveNext();
+        }
+    }
+}

SystemExtensions.Tests/Collections/SkipListTests.cs

@@ -0,0 +1,161 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.IO;
+
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class SkipListTests
+{
+    SkipList<int> skipList = new SkipList<int>();
+    [TestMethod()]
+    public void SkipListTest()
+    {
+        _ = new SkipList<int>();
+    }
+
+    [TestMethod()]
+    public void SkipListTest2()
+    {
+        _ = new SkipList<int>(30);
+    }
+
+    [TestMethod()]
+    public void AddTest()
+    {
+        for(var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        for (var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        this.skipList.Clear();
+        if(this.skipList.Count > 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        for (var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        if (!this.skipList.Contains(50))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void CopyToTest()
+    {
+        for (var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        var array = new int[this.skipList.Count];
+        this.skipList.CopyTo(array, 0);
+        for (var i = 0; i < 200; i++)
+        {
+            if(array[i] != i)
+            {
+                Assert.Fail();
+            }
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for (var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        var array = this.skipList.ToArray();
+
+        for (var i = 0; i < 200; i++)
+        {
+            if(array[i] != i)
+            {
+                Assert.Fail();
+            }
+        }
+    }
+
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        foreach(var i in this.skipList)
+        {
+            System.Diagnostics.Debug.WriteLine(i);
+        }
+    }
+
+    [TestMethod()]
+    public void RemoveTest()
+    {
+        for (var i = 0; i < 200; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        this.skipList.Remove(50);
+        if (this.skipList.Contains(50))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    [Ignore("Binary serialization is obsolete and should not be used anymore")]
+    public void Serialize()
+    {
+        var skipList2 = new SkipList<int>();
+        for (var i = 0; i < 100; i++)
+        {
+            this.skipList.Add(i);
+        }
+
+        var serializer = new BinaryFormatter();
+        using (var stream = new MemoryStream())
+        {
+            serializer.Serialize(stream, this.skipList);
+            stream.Position = 0;
+            skipList2 = (SkipList<int>)serializer.Deserialize(stream);
+        }
+
+        var enum1 = this.skipList.GetEnumerator();
+        var enum2 = skipList2.GetEnumerator();
+
+        for (var i = 0; i < 100; i++)
+        {
+            if (enum1.Current != enum2.Current)
+            {
+                Assert.Fail();
+            }
+
+            enum1.MoveNext();
+            enum2.MoveNext();
+        }
+    }
+}

SystemExtensions.Tests/Collections/TreapTests.cs

@@ -0,0 +1,145 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Collections.Generic;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.IO;
+
+namespace System.Collections.Tests;
+
+[TestClass()]
+public class TreapTests
+{
+    Treap<int> treap = new Treap<int>();
+    [TestMethod()]
+    public void TreapTest()
+    {
+        this.treap = new Treap<int>();
+    }
+
+    [TestMethod()]
+    public void InsertTest()
+    {
+        var random = new Random();
+        for(var i = 0; i < 1000; i++)
+        {
+            this.treap.Add(random.Next(0, 5000));
+        }
+    }
+
+    [TestMethod()]
+    public void RemoveTest()
+    {
+        this.treap.Add(60);
+        this.treap.Add(6);
+        this.treap.Add(5);
+        this.treap.Remove(60);
+        if(this.treap.Contains(60) || this.treap.Count > 2)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ClearTest()
+    {
+        var random = new Random();
+        for (var i = 0; i < 100; i++)
+        {
+            this.treap.Add(random.Next(0, 5000));
+        }
+
+        this.treap.Clear();
+        if(this.treap.Count > 0)
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ContainsTest()
+    {
+        this.treap.Add(50);
+        this.treap.Add(25);
+        this.treap.Add(991142);
+        this.treap.Add(12313);
+        this.treap.Add(24);
+        this.treap.Add(23);
+        if (!this.treap.Contains(24))
+        {
+            Assert.Fail();
+        }
+    }
+
+    [TestMethod()]
+    public void ToArrayTest()
+    {
+        for(var i = 0; i < 1000; i++)
+        {
+            this.treap.Add(i);
+        }
+
+        var arr = this.treap.ToArray();
+        for(var i = 0; i < 1000; i++)
+        {
+            if(arr[i] != i)
+            {
+                Assert.Fail();
+            }
+        }
+    }
+
+    [TestMethod()]
+    public void GetEnumeratorTest()
+    {
+        for (var i = 0; i < 1000; i++)
+        {
+            this.treap.Add(i);
+        }
+
+        var count = 0;
+        foreach(var value in this.treap)
+        {
+            System.Diagnostics.Debug.WriteLine(value);
+            count++;
+        }
+
+        if(count == this.treap.Count)
+        {
+            return;
+        }
+
+        Assert.Fail();
+    }
+
+    [TestMethod()]
+    [Ignore("Binary serialization is obsolete and should not be used anymore")]
+    public void Serialize()
+    {
+        var treap2 = new Treap<int>();
+        for (var i = 0; i < 100; i++)
+        {
+            this.treap.Add(i);
+        }
+
+        var serializer = new BinaryFormatter();
+        using (var stream = new MemoryStream())
+        {
+            serializer.Serialize(stream, this.treap);
+            stream.Position = 0;
+            treap2 = (Treap<int>)serializer.Deserialize(stream);
+        }
+
+        var enum1 = this.treap.GetEnumerator();
+        var enum2 = treap2.GetEnumerator();
+
+        for (var i = 0; i < 100; i++)
+        {
+            if (enum1.Current != enum2.Current)
+            {
+                Assert.Fail();
+            }
+
+            enum1.MoveNext();
+            enum2.MoveNext();
+        }
+    }
+}

SystemExtensions.Tests/Extensions/ObjectExtensionsTests.cs

@@ -0,0 +1,42 @@
+using FluentAssertions;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace System.Extensions.Tests;
+
+[TestClass]
+public class ObjectExtensionsTests
+{
+    [TestMethod]
+    public void ThrowIfNull_NetCore_ThrowsWithCorrectName()
+    {
+        object obj = null;
+        try
+        {
+            System.Core.Extensions.ObjectExtensions.ThrowIfNull(obj);
+        }
+        catch (ArgumentNullException ex)
+        {
+            ex.ParamName.Should().Be("obj");
+            return;
+        }
+
+        Assert.Fail("Null object should throw");
+    }
+
+    [TestMethod]
+    public void ThrowIfNull_NetStandard_ThrowsWithCorrectName()
+    {
+        object obj = null;
+        try
+        {
+            ObjectExtensions.ThrowIfNull(obj, nameof(obj));
+        }
+        catch (ArgumentNullException ex)
+        {
+            ex.ParamName.Should().Be("obj");
+            return;
+        }
+
+        Assert.Fail("Null object should throw");
+    }
+}