private static void HandleKeyEvent(InputEvent ev)
{
    // 0 = Key up/released
    // 1 = Key down/pressed
    // 2 = Key hold/repeating
    Key key = _keyMap[ev.code];
    if (key != Key.None)
    {
        if (ev.value == 0)
        {
            KeyUp?.Invoke(key);
        }
        else if (ev.value == 1 || ev.value == 2)
        {
            KeyDown?.Invoke(key);
        }
    }
}