public static MauiApp CreateMauiApp()
{
    var builder = MauiApp.CreateBuilder();
    builder
        .UseMauiApp<App>()
        .UseKeyboardHandling();

    builder.Services.AddKeyboardHandling(options =>
    {
        // Barcode specific settings
        options.BarcodeTimeout = 150;
        options.MinBarcodeLength = 8;
    });

    return builder.Build();
}

public partial class MainPage : ContentPage
{
    private readonly IKeyHandlerService _keyHandlerService;
    private readonly BarcodeHandler _barcodeHandler;
    private readonly HotkeyHandler _hotkeyHandler;

    public MainPage(
        IKeyHandlerService keyHandlerService, 
        BarcodeHandler barcodeHandler,
        HotkeyHandler hotkeyHandler)
    {
        InitializeComponent();
        
        _keyHandlerService = keyHandlerService;
        _barcodeHandler = barcodeHandler;
        _hotkeyHandler = hotkeyHandler;
        
        SetupHandlers();
    }

    private void SetupHandlers()
    {
        // Setup barcode handling
        _barcodeHandler.BarcodeScanned += (sender, input) =>
        {
            MainThread.BeginInvokeOnMainThread(() =>
            {
                ProcessInput(input);
            });
        };

        // Setup global hotkeys
        _hotkeyHandler.RegisterHotkey("F2", () =>
        {
            EnableEditMode();
        });

        // Register handlers
        _keyHandlerService.RegisterHandler(_barcodeHandler);           
        _keyHandlerService.RegisterHandler(_hotkeyHandler);
    }
}

public class CustomKeyHandler : IKeyHandler
{
    public bool ShouldHandle(string key) => true;

    public void HandleKey(string key)
    {
        // Your custom key handling logic
    }
}

// Single key hotkeys
_hotkeyHandler.RegisterHotkey("F2", EnableEditMode);
_hotkeyHandler.RegisterHotkey("ESC", CancelOperation);

// All these registrations trigger the same hotkey (Ctrl+Alt+Shift+P)
_hotkeyHandler.RegisterHotkey("Ctrl+Alt+Shift+P", PrintAction);
_hotkeyHandler.RegisterHotkey("Shift+Ctrl+Alt+P", PrintAction);
_hotkeyHandler.RegisterHotkey("Alt+Shift+Control+P", PrintAction);

// Supports common aliases
_hotkeyHandler.RegisterHotkey("Control+Alt+P", PrintAction);  // "Control" is normalized to "Ctrl"
_hotkeyHandler.RegisterHotkey("Windows+Shift+X", ActionX);    // "Windows" is normalized to "Win"

// Case-insensitive handling
_hotkeyHandler.RegisterHotkey("CTRL+ALT+P", PrintAction);
_hotkeyHandler.RegisterHotkey("ctrl+alt+p", PrintAction);

//Special keys
_hotkeyHandler.RegisterHotkey("VolumeUp", VolumeControlAction); //Android Volume Up
_hotkeyHandler.RegisterHotkey("OEM173", VolumeControlAction); //OEM 173

_barcodeHandler.BarcodeScanned += (sender, input) =>
{    
    ProcessProduct(input); 
};