In Rapid and Blitz tournaments, there are usually multiple over-the-board chess games going on simultaneously.
It seems many websites and live streams have access to the chess boards of many players, and are able to show the moves in real time.
How does this work? Are there dedicated people watching every game and updating the moves in the system? Or is it somehow done automatically? If so, how does that work exactly? And how are multiple websites or streams which do not seem to be affiliated with each other able to show the moves?
I believe the live analysis board is usually out-of-sync with the video of the players, so I suspect that it might be done manually, but it seems absurd to have an army of people watching each game and updating the moves.