Add Avalonia project

StabilityMatrix.Avalonia/App.axaml

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+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="StabilityMatrix.Avalonia.App"
+             xmlns:local="using:StabilityMatrix.Avalonia"
+             xmlns:styling="clr-namespace:FluentAvalonia.Styling;assembly=FluentAvalonia"
+             RequestedThemeVariant="Default">
+             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+
+    <Application.DataTemplates>
+        <local:ViewLocator/>
+    </Application.DataTemplates>
+  
+    <Application.Styles>
+        <styling:FluentAvaloniaTheme />
+    </Application.Styles>
+</Application>

StabilityMatrix.Avalonia/App.axaml.cs

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+using System;
+using System.Diagnostics.CodeAnalysis;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using Avalonia.Styling;
+using Microsoft.Extensions.DependencyInjection;
+using StabilityMatrix.Avalonia.ViewModels;
+using StabilityMatrix.Avalonia.Views;
+
+namespace StabilityMatrix.Avalonia;
+
+public partial class App : Application
+{
+    public static IServiceProvider Services { get; set; } = null!;
+    
+    
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+        
+        // Set design theme
+        if (Design.IsDesignMode)
+        {
+            RequestedThemeVariant = ThemeVariant.Dark;
+        }
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        ConfigureServiceProvider();
+        
+        var mainViewModel = Services.GetRequiredService<MainWindowViewModel>();
+        
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.MainWindow = new MainWindow
+            {
+                DataContext = mainViewModel
+            };
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+    
+    private static void ConfigureServiceProvider()
+    {
+        var services = ConfigureServices();
+        Services = services.BuildServiceProvider();
+    }
+    
+    private static IServiceCollection ConfigureServices()
+    {
+        var services = new ServiceCollection();
+        
+        services.AddSingleton<MainWindowViewModel>();
+        services.AddSingleton<LaunchPageViewModel>();
+        
+        services.AddTransient<LaunchPageView>();
+        
+        return services;
+    }
+}

StabilityMatrix.Avalonia/Program.cs

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+using Avalonia;
+using System;
+using System.Diagnostics.CodeAnalysis;
+
+namespace StabilityMatrix.Avalonia;
+
+[SuppressMessage("ReSharper", "ClassNeverInstantiated.Global")]
+[SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
+public class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+            .WithInterFont()
+            .LogToTrace();
+}

StabilityMatrix.Avalonia/StabilityMatrix.Avalonia.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+        <ApplicationManifest>app.manifest</ApplicationManifest>
+        <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Folder Include="Controls\" />
+        <Folder Include="Models\"/>
+        <AvaloniaResource Include="Assets\**"/>
+    </ItemGroup>
+
+
+    <ItemGroup>
+        <PackageReference Include="Avalonia" Version="11.0.0"/>
+        <PackageReference Include="Avalonia.Desktop" Version="11.0.0"/>
+        <PackageReference Include="Avalonia.Fonts.Inter" Version="11.0.0"/>
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.0.0"/>
+        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.1" />
+        <PackageReference Include="FluentAvaloniaUI" Version="2.0.0-rc1" />
+        <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="7.0.0" />
+    </ItemGroup>
+</Project>

StabilityMatrix.Avalonia/ViewLocator.cs

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+using System;
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+using StabilityMatrix.Avalonia.ViewModels;
+
+namespace StabilityMatrix.Avalonia;
+
+public class ViewLocator : IDataTemplate
+{
+    public Control Build(object? data)
+    {
+        if (data is null) throw new ArgumentNullException(nameof(data));
+        
+        var name = data.GetType().FullName!.Replace("ViewModel", "View");
+        var type = Type.GetType(name);
+        
+        // Get from DI
+        if (type is not null)
+        {
+            var view = App.Services.GetService(type);
+            if (view is not null)
+            {
+                return (Control) view;
+            }
+        }
+
+        return new TextBlock {Text = "Not Found: " + name};
+    }
+
+    public bool Match(object? data)
+    {
+        return data is ViewModelBase;
+    }
+}

StabilityMatrix.Avalonia/ViewModels/LaunchPageViewModel.cs

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+using System;
+
+namespace StabilityMatrix.Avalonia.ViewModels;
+
+public partial class LaunchPageViewModel : PageViewModelBase
+{
+    /// <summary>
+    /// The Title of this page
+    /// </summary>
+    public string Title => "Welcome to our Wizard-Sample.";
+
+    /// <summary>
+    /// The content of this page
+    /// </summary>
+    public string Message => "Press \"Next\" to register yourself.";
+
+    public override bool CanNavigateNext { get; protected set; }
+    public override bool CanNavigatePrevious { get; protected set; }
+}

StabilityMatrix.Avalonia/ViewModels/MainWindowViewModel.cs

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+using System;
+using System.Collections.Generic;
+using Avalonia.Controls;
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace StabilityMatrix.Avalonia.ViewModels;
+
+public partial class MainWindowViewModel : ViewModelBase
+{
+    public string Greeting => "Welcome to Avalonia!";
+    
+    [ObservableProperty]
+    private PageViewModelBase? currentPage;
+    
+    public List<PageViewModelBase> Pages { get; } = new();
+    
+    public MainWindowViewModel(LaunchPageViewModel launchPageViewModel)
+    {
+        Pages.Add(launchPageViewModel);
+        CurrentPage = Pages[0];
+    }
+
+    public MainWindowViewModel()
+    {
+        if (!Design.IsDesignMode)
+        {
+            throw new InvalidOperationException("Default Constructor is only for design-time.");
+        }
+        Pages.Add(new LaunchPageViewModel());
+        CurrentPage = Pages[0];
+    }
+}

StabilityMatrix.Avalonia/ViewModels/PageViewModelBase.cs

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+namespace StabilityMatrix.Avalonia.ViewModels;
+
+/// <summary>
+/// An abstract class for enabling page navigation.
+/// </summary>
+public abstract class PageViewModelBase : ViewModelBase
+{
+    /// <summary>
+    /// Gets if the user can navigate to the next page
+    /// </summary>
+    public abstract bool CanNavigateNext { get; protected set; }
+
+    /// <summary>
+    /// Gets if the user can navigate to the previous page
+    /// </summary>
+    public abstract bool CanNavigatePrevious { get; protected set; }
+}

StabilityMatrix.Avalonia/ViewModels/SecondPageViewModel.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace StabilityMatrix.Avalonia.ViewModels;
+
+/// <summary>
+///  This is our ViewModel for the second page
+/// </summary>
+partial class SecondPageViewModel : PageViewModelBase
+{
+    public SecondPageViewModel()
+    {
+    }
+
+    [Required]
+    [EmailAddress]
+    [ObservableProperty]
+    private string? mailAddress;
+
+    [Required]
+    [ObservableProperty]
+    private string? password;
+
+    public override bool CanNavigateNext { get; protected set; } = true;
+    public override bool CanNavigatePrevious { get; protected set; }
+}

StabilityMatrix.Avalonia/ViewModels/ViewModelBase.cs

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+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace StabilityMatrix.Avalonia.ViewModels;
+
+public class ViewModelBase : ObservableValidator
+{
+}

StabilityMatrix.Avalonia/Views/LaunchPageView.axaml

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+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:vm="clr-namespace:StabilityMatrix.Avalonia.ViewModels"
+             xmlns:views="using:StabilityMatrix.Avalonia.Views"
+             xmlns:ui="using:FluentAvalonia.UI.Controls"
+             x:CompileBindings="True"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="StabilityMatrix.Avalonia.Views.LaunchPageView">
+    <Design.DataContext>
+        <vm:LaunchPageViewModel />
+    </Design.DataContext>
+    
+    <Grid RowDefinitions="Auto,*,Auto">
+        <Grid ColumnDefinitions="Auto,*">
+            <Grid ColumnDefinitions="0.8*,0.2*">
+                <!--<ui:Flyout
+                    Background="{DynamicResource SystemAccentColorPrimaryBrush}"
+                    FontSize="18"
+                    Grid.Column="0"
+                    Grid.Row="0"
+                    IsOpen="{Binding IsLaunchTeachingTipsOpen, Mode=TwoWay}"
+                    Margin="24,8,0,0"
+                    Placement="Bottom">
+                    <StackPanel Orientation="Horizontal">
+                        <Grid HorizontalAlignment="Left">
+                            <ui:SymbolIcon Symbol="ArrowCurveUpLeft20" />
+                        </Grid>
+                        <TextBlock
+                            HorizontalAlignment="Left"
+                            Text="Click Launch to get started!"
+                            TextWrapping="WrapWithOverflow"
+                            Width="280" />
+                    </StackPanel>
+                </ui:Flyout>-->
+                
+                <!-- Command="{Binding LaunchCommand}" -->
+                <!--Visibility="{Binding LaunchButtonVisibility, FallbackValue=Visible}"-->
+                <Button
+                    Content="Launch"
+                    Grid.Column="0"
+                    Grid.Row="0"
+                    HorizontalAlignment="Left"
+                    Margin="24,8,0,0"
+                    VerticalAlignment="Stretch"
+                    Width="72"/>
+                <!--Command="{Binding StopCommand}"-->
+                <!--Visibility="{Binding StopButtonVisibility, FallbackValue=Hidden}"-->
+                <Button
+                    IsVisible="False"
+                    Content="Stop"
+                    Grid.Column="0"
+                    Grid.Row="0"
+                    HorizontalAlignment="Left"
+                    Margin="24,8,0,0"
+                    VerticalAlignment="Stretch"
+                    Width="72"/>
+                <!--Command="{Binding ConfigCommand}"-->
+                <Button
+                    FontSize="16"
+                    Grid.Column="1"
+                    Grid.Row="0"
+                    HorizontalAlignment="Left"
+                    Margin="8,8,0,0"
+                    VerticalAlignment="Stretch"
+                    Width="48">
+                    <ui:SymbolIcon Symbol="Settings" FontSize="16"/>
+                    <!--<ui:Button.Icon>
+                        <ui:SymbolIcon Symbol="Settings32" />
+                    </ui:Button.Icon>-->
+                </Button>
+            </Grid>
+            <!--ItemsSource="{Binding InstalledPackages}"-->
+            <!--SelectedValue="{Binding SelectedPackage}"-->
+            <ComboBox
+                Grid.Column="1"
+                Grid.Row="0"
+                HorizontalAlignment="Stretch"
+                Margin="8,8,24,0"
+                VerticalAlignment="Top"
+                x:Name="SelectPackageComboBox">
+                <!--<ComboBox.ItemContainerStyle>
+                    <Style TargetType="ComboBoxItem">
+                        <Setter Property="Template" Value="{StaticResource SelectPackageDropDownStyle}" />
+                    </Style>
+                </ComboBox.ItemContainerStyle>-->
+
+                <!--<ComboBox.ItemTemplate>
+                    <DataTemplate DataType="{x:Type models:InstalledPackage}">
+                        <StackPanel Margin="10,0,0,0" VerticalAlignment="Top">
+                            <TextBlock
+                                Margin="0,5,0,5"
+                                Name="NameTextBlock"
+                                Text="{Binding DisplayName, Mode=OneWay}" />
+                        </StackPanel>
+                    </DataTemplate>
+                </ComboBox.ItemTemplate>-->
+            </ComboBox>
+        </Grid>
+        <SelectableTextBlock
+            Margin="24,16"
+            Text="Console output here."
+            Grid.Row="1">
+        </SelectableTextBlock>
+        <!--<terminal:Terminal Grid.Row="1"
+                           Margin="24,8,26,10"
+                           Background="{DynamicResource ControlFillColorDisabledBrush}"
+                           IsReadOnly="True"
+                           AutoScroll="True"
+                           FontFamily="Consolas"
+                           ItemHeight="22"
+                           Foreground="White"
+                           BorderThickness="0"
+                           VerticalScrollBarVisibility="Auto"
+                           ItemsSource="{Binding ConsoleHistory, Mode=OneWay}"/>-->
+        
+        <!--Command="{Binding LaunchWebUiCommand}"-->
+        <!--Visibility="{Binding ShowWebUiButton, Converter={StaticResource BoolToVisConverter}}"-->
+        <Button
+            Content="Open Web UI"
+            FontSize="12"
+            Grid.ColumnSpan="2"
+            Grid.Row="2"
+            HorizontalAlignment="Stretch"
+            Margin="24,0,24,8"/>
+    </Grid>
+    
+</UserControl>

StabilityMatrix.Avalonia/Views/LaunchPageView.axaml.cs

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+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace StabilityMatrix.Avalonia.Views;
+
+public partial class LaunchPageView : UserControl
+{
+    public LaunchPageView()
+    {
+        InitializeComponent();
+    }
+
+    private void InitializeComponent()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+}

StabilityMatrix.Avalonia/Views/MainWindow.axaml

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+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:StabilityMatrix.Avalonia.ViewModels"
+        xmlns:views="using:StabilityMatrix.Avalonia.Views"
+        xmlns:ui="using:FluentAvalonia.UI.Controls"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:CompileBindings="True"
+        x:Class="StabilityMatrix.Avalonia.Views.MainWindow"
+        x:DataType="vm:MainWindowViewModel"
+        Icon="/Assets/avalonia-logo.ico"
+        Title="StabilityMatrix.Avalonia">
+
+    <Design.DataContext>
+        <vm:MainWindowViewModel/>
+    </Design.DataContext>
+    
+    <Grid RowDefinitions="Auto,*">
+        <ui:NavigationView AlwaysShowHeader="False"
+                           PaneDisplayMode="Left"
+                           Grid.RowSpan="2"
+                           Content="{Binding CurrentPage}"
+                           MenuItemsSource="{Binding Pages, Mode=OneWay}"
+                           IsSettingsVisible="True"
+                           IsBackEnabled="True">
+            
+            <ui:NavigationView.MenuItemTemplate>
+                <DataTemplate>            
+                    <ui:NavigationViewItem 
+                        Tag="LaunchPageView"
+                        IsSelected="True"
+                        Content="Launch"/>
+                </DataTemplate>
+            </ui:NavigationView.MenuItemTemplate>
+            
+            <ui:NavigationView.ContentTemplate>
+                <DataTemplate DataType="{x:Type vm:PageViewModelBase}">
+                    <ContentControl Content="{Binding}" />
+                </DataTemplate>
+            </ui:NavigationView.ContentTemplate>
+            <ui:NavigationView.DataTemplates>
+                <!-- Define your DataTemplates here, could also use ContentTemplate if only 1 template is needed -->
+            </ui:NavigationView.DataTemplates>
+        </ui:NavigationView>
+    </Grid>
+</Window>

StabilityMatrix.Avalonia/Views/MainWindow.axaml.cs

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+using Avalonia.Controls;
+using StabilityMatrix.Avalonia.ViewModels;
+
+namespace StabilityMatrix.Avalonia.Views;
+
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+}

StabilityMatrix.Avalonia/app.manifest

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+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embeded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="StabilityMatrix.Avalonia.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>