note that you probably need to trust the remote household with your data
Probably not actually. Borgbackup (and any sensible encrypted backup system really), does client side encryption. So the data should be encrypted before it’s even sent down the wire. The remote household shouldn’t be able to access the data without the encryption key/password.
I mean, they will have to trust the remote household not to destroy the data, but that’s pretty much an unavoidable limitation.



I’ve always treated my home server with public facing services as presumptively compromised. I don’t put any data on there I wouldn’t want to see become public, and any data I actually care about losing is backed up to the cloud with an append-only key. The NixOS config lives in a git repo not on the server. If something bad happens, I can wipe the machine clean, redeploy the image, restore my backups, and we’re back to the status quo.
So, my threat model hasn’t changed much!