I have an external storage unit a couple kilometers away and two 8TB hard drives with luks+btrfs. One of them is always in the box and after taking backups, when I feel like it, I detach the drive and bike to the box to switch. I’m currently researching btrbk for updating the backup drive on my pc automatically, it’s pretty manual atm. For most scenarios the automatic btrfs snapshots on my main disks are going to be enough anyway.

Exactly this. As a European I don’t feel comfortable anymore relying on any US service for essential needs. Stuff like youtube is fine, it’s just entertainment. But I cannot rely on big tech on anything that, if suddenly gone one day, would cause me any sort of actual annoyance. When you think about it the list is quite long and sneaky.