Lots of people have mentioned rsynx, restic, borgbackup, and others, but which would be best for backing up nextcloud, immich, and radicale? Do all of them have a method of automatically backing up every X days/weeks? Why use one over the other, what are the differences?
I used this years ago. I had issues with repeated database corruption. Google search showed lots of people with similar issues.
I moved to borg backup which has been great.