Jitsi Meet

Jitsi itself is an open-source project containing several repositories. The only real important one for the sake of this project is Jitsi Meet. This is the main video conferencing application that has been extremely well-maintained and well-documented. It comes in a few forms via their docs, including downloading as a complete docker file that Just Works™. However, you probably don't want that if, like me, you don't really understand Docker and its limitations.

Setup Advice

My advice: before even setting up a Jitsi server, have a purchased domain ready from a major provider like Cloudflare. Also, don't try to run peer-to-peer or locally. I managed to run my own Jitsi server from my own machine, but it requires access to your router so that you can enable port-forwarding ports. I probably spent two weekends trying to use a relay to access my server via STUN/TURN servers. Just skip all that, get AWS free tier, and install it on an EC2.

Holy crap, the handbook actually has that exact advice. Too bad I didn't listen. But you can, and you should.