Not something I would use, at least not with public relays. And have your nsec as the master key with access to all other passwords? Yeah, I'm out.

Not everything needs to be built on Nostr to be useful to those who use Nostr, though.

For instance, I still think it would be great to have a fork of Bitwarden that had a built-in NIP-46 signer. 

 Noted. Ty