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’m not backing up any databases that are so intensively used that I can’t live-copy them. Most of my databases (SQLite) sit idle until I explicitly do something to them. SQLite doesn’t really care about it unless it’s actively writing to the database.