Ну идея то хорошая, но реализация через жопу, будет супер если кнопки будут расположены справа, что бы не задевать полоску звука.

the rewind buttons works really well. Would be nice a button to also go forward by a few seconds, say, go back 30s and then forward by 5s

Did not work. The progress bar for the stream did not appear at all, and the reverse buttons had no effect on the livestream.