Problem is, i want to exclude third parties. I'd prefer a direct heavily encrypted connection directly to my server. Definitely not a cloud somewhere, especially not google & co.
Nextcloud is way too blown up and vulnerable for me. I really only need file-synching. Got servers working for the other stuff like caldav.
ideallyi'd use Unison sync inside termux, but it hasnt been packaged and i dont know the first thing about ocaml, so it'd be hard for me to make the needed adjustments to package it.