Not the OP, but I use a little Debian machine to self-host. It’s fairly stable when running, but updates are dicey. It has too many dependencies and every major update has had some breakage that takes a while to fix.

My own instance is still on 4.0.0 despite 4.1.2 being out because I don’t see a benefit in updating and I don’t want to risk spending three or four hours hunting through yarn dependencies to undo an update that breaks things.