Comment by dtkav

Shameless plug(in) -- While not built-in, Relay [0] is a plugin that makes Obsidian multiplayer. Our broader goal is to make Obsidian great for work.

You can make individual folders collaborative in your vault with several different parties. We use yjs CRDTs for real-time collaboration, and we're making the collaboration server (optionally) self-hosted.

Check it out :)

[0] https://system3.md/relay