It’s a bit difficult. I don’t have the money for an entire 2nd server on my network and $500 in HDDs just for a backup solution as part of 3/2/1.

I have 3TB of fault-tolerant-ish data in a ZFS mirror then 12TB in a third, single drive full of stuff that I don’t care a ton if I lost (media and stuff mostly)

Maybe I could back up the more needed data to Hetzner or something for cheaper, but it still adds up.