Try https://cocalc.com/ https://cocalc.com/ . To be more precise install your own on-premise version of cocalc using their free docker container: https://githu

Try https://cocalc.com/ https://cocalc.com/ . To be more precise install your own on-premise version of cocalc using their free docker container: https://github.com/sagemathinc/cocalc-docker https://github.com/sagemathinc/cocalc-docker It allows you to collaborate in realtime on jupyter notebooks. It has a cool time-travel feature, a chat, latex editor, etc... And all this for free on your own server.