commander/App.xaml.cs

using CommanderApp.Services;
using Microsoft.Extensions.DependencyInjection;

namespace CommanderApp;

public partial class App : Application
{
    public App()
    {
        InitializeComponent();

        var services = new ServiceCollection();
        ConfigureServices(services);
        var serviceProvider = services.BuildServiceProvider();

        MainPage = serviceProvider.GetService<MainPage>();
    }

    private void ConfigureServices(ServiceCollection services)
    {
        services.AddSingleton<IFileSystemService, FileSystemService>();
        services.AddSingleton<IPanelManager, PanelManager>();
        services.AddSingleton<IFileOperations, FileOperations>();
        services.AddSingleton<IKeyboardService, KeyboardService>();
        services.AddSingleton<IPathHelper, PathHelper>();
        services.AddSingleton<MainPage>();
    }
}