[nvllsvm]

Syncthing for files (music, photos, videos, noted), DAVx5 for contacts+calendar. Everything else is either a client app (email) or ephemeral (text messages).

[bnlxbnlx]

Same for me

[Azerty9999]

I posted it above, but unfortunately synchthing for Android is at end of life https://forum.syncthing.net/t/discontinuing-syncthing-androi...

[mappu]

This fork has been better for a long time already: https://github.com/Catfriend1/syncthing-android