

I don’t know which versions are available on the play store, but f-droid only had the current official release, which is buggy and missing a lot. I had to go sideload the beta from GitHub and it has every feature I need including the one you’re after.
Oops, thought you were asking about Finamp for just music.
I use Unix Pass connected over Tailscale to a git server I host myself. The interface options for various devices are a bit clunky, but it basically “just works” outside of that.
Edit: I used to use KeePass and syncthing, which I think is probably the best (balance of simple and effective) combo for most users.