[kajmagnusmobile]

What about not only the teacher helping the students, but the students also helping each other?

And each question can get it's own topic -- there's a chat but it need not be used for everything?

And, an open source platform? A university can choose to install on their own server.

Then have a look at Talkyard:

https://www.talkyard.io/use-cases (I'm developing it)