I set it up a while ago and don’t have a good resource for setting it up now. Once I got it set up it has worked well. But like I said it seems fragile. When I upgraded fedora a couple of years ago it broke. I think it might have been the wayland transition. I switched from Nvidia to AMD. But I’m not sure that’s necessary. My wife and I have two workstations on one computer. It works well until it breaks (if you want to live with end of life software it may not break). For whatever reason multiseat doesn’t seem to be a mainstream feature. But I like it and have been using it for many years.
https://wiki.debian.org/Multi_Seat_Debian_HOWTO
Loginctl is the tool you use to assign hardware to different seats. Also I’m not sure every login manager supports it. I used GDM.
The open source community feels like the ultimate right to repair environment. You’re right, it feels very empowering and fulfilling. Totally opposite of the frustration of dealing with often intentionally unrepairable products.
Facebook Marketplace - > Craigslist
When reddit announced that they were going public I knew the end was nigh. Money corrupts everything. What made reddit cool was the users and reddit just wanted to suck that dry. I was happy to leave but I pretty much just lurked on Reddit so it wasn’t that hard.