I’ve been running nextcloud for my family and some projects about two years now and while it’s allright when it’s not breaking, I’ve had it break twice during upgrades and once outside of an upgrade. Getting back to running again during upgrades may require that I have two instances running one after the other - which is just too much to deal with for me, I’m anxious everytime a new update arrives, even though my system does backups and updates mostly automatic (yunohost).

(I run Nixos/Guix on my own laptop and get shivers anytime I have to deal with around in debian/android/anything-unlike-nixos-or-guix. And, yes, last I checked even Nixos struggles with nextcloud - which speaks volumes about it. I run yunohost on the server because it did DNS automagically)

So my question is, what could I change to that has:

• high reproducibility/easy maintenance/easy upgrades.
• file sync
• file sharing between users
• some kind of direct link file sharing

Nice to have:

• collaboration of some sort
• caldav (calendar and tasks)
• carddav (contacts)

Grateful for any and all inputs here. :)