[lavishlibra0810]

You could look in peer to peer interactions for some actions on the board and websockets for keeping state of the board in sync for everyone.

[bilekas]

Personally I would try Server Sent Events if its just a hobby. https://html.spec.whatwg.org/#server-sent-events

Supports compression easier, less issues with proxies, multiplexing etc. And have found that they're much more simple to play with!

[tsp]

Interesting! I never used SSE, because I read that it is more complicated than websockets.

[tsp]

Are there any peer to peer protocols in particular that you can recommend for this use-case?