With the official app no longer updated (i don’t trust the forks), i’m looking for alternatives for 2 way sync between my Android phone and my Linux server. I’ve tried nextcloud a long time ago and the experience was very bad. Are there any new tools that i can use?


Yep.
I run Tailscale on every device that can run it, and have a TS router in one device at home for devices that can’t run it.
Its my fallback Syncthing every has a Discovery server failure.