I use restic to back up to both local and remote.

The bigger question that almost nobody mentioned is how often you test your backups. I test monthly, because a backup you cannot restore is no backup at all.

I backup using a simple rsync script to a Hetzner storage box.

It’s kind of broken at the moment, but I have set up duplicity to create encrypted backups to Bacblaze B2 buckets.

Of course the proper way would be to back up to at least 2 more locations. Perhaps a local NAS for starters. Also could be configured in duplicity.

My server uses zfs, which allows me to create regular snapshots with sanoid. This makes it extremly easy to quickly recover individual services or vms without consuming a lot of disk space. In case the server is not recoverable, I still send the incremental snapshots to a pi clone with a large hard drive. If you use the native disk encryption, the snapshot can be sent encrypted without the second server having access to the data.This solution with zfs and sanoid/syncoid has often made my life easier and, in my experience, uses less bandwidth and cpu load.

• kopia backup to 2nd disk
• kopia backup to B2 cloud
• duplicaty backup to google drive (only most important folder <1GB)

Most of the files are actually nextcloud so I get one more copy of files (not backup) on PC by syncing with nextcloud app