OF-DL/OF DL.Gui/App.axaml.cs

using Avalonia;
using Avalonia.Controls.ApplicationLifetimes;
using Avalonia.Markup.Xaml;
using Microsoft.Extensions.DependencyInjection;
using OF_DL.Gui.Services;
using OF_DL.Gui.ViewModels;
using OF_DL.Gui.Views;

namespace OF_DL.Gui;

public class App : Application
{
    private readonly ServiceProvider _serviceProvider = ServiceCollectionFactory.Create().BuildServiceProvider();

    public override void Initialize() => AvaloniaXamlLoader.Load(this);

    public override void OnFrameworkInitializationCompleted()
    {
        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
        {
            MainWindow mainWindow = _serviceProvider.GetRequiredService<MainWindow>();
            mainWindow.DataContext = _serviceProvider.GetRequiredService<MainWindowViewModel>();
            desktop.MainWindow = mainWindow;
        }

        base.OnFrameworkInitializationCompleted();
    }
}