I do have it installed through F-Droid. I thought I read that they weren't really going to be focusing on it at all, so updates may just die out.
Brings the little hope that my current situation won't die!
I don't know enough about Java directly to contribute anything useful, sadly.
The whole point of self-hosting it is to not put the information on a public cloud. But, thankfully the F-Droid fork is still going on and I had misread it anyway.