There is a this live collaboration project: https://api-production-006c.up.railway.app/

https://www.reddit.com/r/ableton/comments/1xrbj82/been_an_ab...

> mainly it uses the underlying control surface layer to receive events with a python bridge then communicates those out to a central server, from there there's a websocket room you have to be invited to and you get all the updates.

> For changes or additions of samples/tracks it sends it to an incoming temp directory and edit's the ALS to read from it instantly

> The git portion is heavily inspired by git lfs, and stores your data in r2's but only diff's between the last version and current version.

It's a hosted product, but self hosting is possible even now. I think the code is up on github.