Notes/Notes.Desktop/Program.cs

using System;
using Avalonia;
using Avalonia.Logging;
using Avalonia.ReactiveUI;
using Notes.ViewModels;

namespace Notes.Desktop;

sealed 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)
    {
        var services = new Services();
        services.Register<IFileService>(new FileService());
        App.services = services;
        BuildAvaloniaApp()
            .StartWithClassicDesktopLifetime(args);
    }

    // Avalonia configuration, don't remove; also used by visual designer.
    public static AppBuilder BuildAvaloniaApp()
        => AppBuilder.Configure<App>()
            .UsePlatformDetect()
            .WithInterFont()
            .LogToTrace(LogEventLevel.Verbose, LogArea.Binding)
            .UseReactiveUI();
}