First real stable push since migrating

LD-SysInfo/App.xaml.cs

@@ -0,0 +1,56 @@
+using CommunityToolkit.Mvvm.Messaging;
+using MaterialDesignThemes.Wpf;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using System.Windows;
+using System.Windows.Threading;
+
+namespace LD_SysInfo;
+
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App : Application
+{
+    [STAThread]
+    private static void Main(string[] args)
+    {
+        MainAsync(args).GetAwaiter().GetResult();
+    }
+
+    private static async Task MainAsync(string[] args)
+    {
+        using IHost host = CreateHostBuilder(args).Build();
+        await host.StartAsync().ConfigureAwait(true);
+
+        App app = new();
+        app.InitializeComponent();
+        app.MainWindow = host.Services.GetRequiredService<MainWindow>();
+        app.MainWindow.Visibility = Visibility.Visible;
+        app.Run();
+
+        await host.StopAsync().ConfigureAwait(true);
+    }
+
+    public static IHostBuilder CreateHostBuilder(string[] args) =>
+        Host.CreateDefaultBuilder(args)
+        .ConfigureAppConfiguration((hostBuilderContext, configurationBuilder)
+            => configurationBuilder.AddUserSecrets(typeof(App).Assembly))
+        .ConfigureServices((hostContext, services) =>
+        {
+            services.AddSingleton<MainWindow>();
+            services.AddSingleton<MainWindowViewModel>();
+
+            services.AddSingleton<WeakReferenceMessenger>();
+            services.AddSingleton<IMessenger, WeakReferenceMessenger>(provider => provider.GetRequiredService<WeakReferenceMessenger>());
+
+            services.AddSingleton(_ => Current.Dispatcher);
+
+            services.AddTransient<ISnackbarMessageQueue>(provider =>
+            {
+                Dispatcher dispatcher = provider.GetRequiredService<Dispatcher>();
+                return new SnackbarMessageQueue(TimeSpan.FromSeconds(3.0), dispatcher);
+            });
+        });
+}