4-2-1-1 for me

Two copies at home, synced daily, one of them in an external drive that I like to refer as the emergency grab and run copy lol

One at a family member synced weekly and manually every time I visit.

All of those three copies are always within a 10 kilometer radius in a valley overseen by a volcano so…

One partial copy of the so-critical-would-cry-if-Iost data is synced every few days to a backblaze bucket.