Start ratchet web server in codeginiter

Hello

What is correct way to start ratchet web socket server in codeigniter?
I tried Events.php file and events pre_system an post_system, but codeigniter becomes unresponsive

My Code

$SocketServer = null;

Events::on('post_system', function () {


    $SocketServer = IoServer::factory(
        new HttpServer(
            new WsServer(
                new \ServerEvents\Chat\Chat()
            )
        ),
        6745
    );

    $SocketServer->run();   
    
});