on my CachyOS/Arch and NixOS machines I just use borg to backup to my dedicated server. Very easy to do. I have a couple alias’ set up so I can view my backups easily through my file manager on whatever local machine. Essentially all you have to do is make a script to tell it what files/folders to backup, what to potentially ignore, how often you want to backup, the time of day you want it to happen, can also tell it to delete old backups. In NixOS it’s painfully easy to set up and can be done within the configuration.nix. On other distros the only difference is you have to set up a service and timer for it.

but I like it, it’s straight forward, never had issues with it.