This is a demo of a CodeMirror 5 editor that was made collaborative with Yjs & y-codemirror. Note that CodeMirror 6 is now the latest release.
We use the y-websocket provider to share document updates through a server. There are many more providers available for Yjs - try switching to another provider. See docs.
Also you could try addingh offline persistence to this demo. Wouldn't it be cool if document updates are persisted in the browser, so you can load your application load faster? Try it out: https://docs.yjs.dev/getting-started/allowing-offline-editing
npm i
npm start
# Project is running at http://localhost:8080/