C# monitor keypress console

static void MonitorThreadProc(object state)
{
    var cts = (CancellationTokenSource)state;
    while(!Console.KeyAvailable)
    {
        Thread.Sleep(10);
    }
    cts.Cancel();
}
static async Task<int> Main(string[] args)
{
    if (args.Length < 2)
    {
        return -1;
    }
    var port = args[0];
    var path = args[1];
    try
    {
        using (var link = new EspLink(port))
        {
            var cts = new CancellationTokenSource();
            var mon = new Thread(new ParameterizedThreadStart(MonitorThreadProc));
            mon.Start(cts);

            var tok = cts.Token;
            Console.WriteLine("Press any key to cancel...");
            Console.Write("Connecting...");
            await Console.Out.FlushAsync();
            await link.ConnectAsync(true, 3, true, tok, link.DefaultTimeout, new EspProgress());
            Console.WriteLine("\bdone!");
            await Console.Out.FlushAsync();
            Console.WriteLine("Running stub... ");
            await Console.Out.FlushAsync();
            await link.RunStubAsync(tok, link.DefaultTimeout, new EspProgress());
            Console.WriteLine();
            await Console.Out.FlushAsync();
            await link.SetBaudRateAsync(115200, 115200 * 4, tok, link.DefaultTimeout);
            Console.WriteLine($"Changed baud rate to {link.BaudRate}");
            Console.WriteLine("Flashing... ");
            await Console.Out.FlushAsync();
            using (var stm = File.Open(path, FileMode.Open, FileAccess.Read))
            {
                await link.FlashAsync(tok, stm, 16*1024, 0x10000, 3, false, link.DefaultTimeout, new EspProgress());
                Console.WriteLine();
                Console.WriteLine("Hard resetting");
                await Console.Out.FlushAsync();
                link.Reset();
            }
            mon.Abort();
        }
        return 0;
    }
    catch (OperationCanceledException)
    {
        Console.WriteLine("Operation canceled by user. Device may be in invalid state.");
        return 1;
    }
}