CRDT solve a part of your problem, and an important consideration is whether or not you want off-line editing. If you don't need off-line editing, then a WebSoc

CRDT solve a part of your problem, and an important consideration is whether or not you want off-line editing. If you don't need off-line editing, then a WebSocket can do it. I'm actually using my project to build a collaborative IDE (designer like Figma): http://www.adama-lang.org/ http://www.adama-lang.org/ I'm going to be launching it as a SaaS soon so people can spin up a new back-end without managing an infrastructure.