I don’t back up anything I can rebuild. I have multiple half-assed methods in use together for the rest of it:
Backups daily of homedirs on desktops and laptops using Borg and Vorta to external usb drives. These devices get rotated out annually. I used to run 2-disk RAID1 and when I rotated the disks out, split them and sent them to family but now I’m taking my chances on having them local and putting them in a fireproof box.
Code repos are synced to github or srht.
Monthly backups of homedirs are sent via borg to rsync.net.
Desktop and laptop homedirs get periodic (roughly monthly) burns to Dual-Layer BDRs which I put in the fireproof box and sometimes hand off to family.
I don’t back up anything I can rebuild. I have multiple half-assed methods in use together for the rest of it: