Tom on Nostr: Just seen Keybase also exists, but the reference to .kbdx makes me think you mean ...

Just seen Keybase also exists, but the reference to .kbdx makes me think you mean KeePass?
If so I don't like the idea of publishing all my passwords to a public service like Nostr, even if encrypted. Seems like an unnecessary risk/honeypot scenario. There is the keyfile/password combo that adds another layer of encryption I guess.

I prefer security by obscurity, where a non-standard solution poses the biggest effort to attackers.