Also, add a 'room' query param that changes the room key used for WebrtcProvider, segmenting clients into different groups. For instance, if you load up URL http://localhost:3000/?room=blarg, you will be in room 'blarg', and share state with all users in that room, but not in other rooms.
Add example signaling server from y-webrtc (https://github.com/yjs/y-webrtc, revision https://github.com/yjs/y-webrtc/commit/61676a8187e7bd545fd12d0ad6d85f9299b9c0ac) and use it for the WebrtcProvider / SyncedStore.
Also, add a 'room' query param that changes the room key used for WebrtcProvider, segmenting clients into different groups. For instance, if you load up URL
http://localhost:3000/?room=blarg
, you will be in room 'blarg', and share state with all users in that room, but not in other rooms.