Avalonia/samples/MobileSandbox/Platforms/Desktop/Program.cs

using System;
using Avalonia;

namespace MobileSandbox.Desktop
{
    static class Program
    {
        [STAThread]
        static int Main(string[] args) =>
            BuildAvaloniaApp()
                .StartWithClassicDesktopLifetime(args);

        /// <summary>
        /// This method is needed for IDE previewer infrastructure
        /// </summary>
        public static AppBuilder BuildAvaloniaApp()
            => AppBuilder.Configure<App>()
                .UsePlatformDetect()
                .LogToTrace();
    }
}