I found the system very good, congratulations!
However, there is a problem that makes it unusable... the Youtube API does account verification and this prevents the video from playing, every time you try to play it on the big screen the account verification appears and even if you can enter the account, the system remains unusable, I think there is a way to solve it because there are other less evolved systems that run the video directly to the big screen, there is no account verification, please could you find a solution and update your magnificent project? We would be very grateful, your project is spectacular