Oddbean new post about login | logout My preference would be to backup/secure a personal server with less concern about doing the same with various client devices.
but thats the way you backup everything pre-nostr. All internet services are designed to store data in the server as a reliable source. With nostr I see a natural shift to client first-class database storage. Then, a second backup could be selfhosted with relays to have data redoundancy and for all threat model/preferencies.