Aside from that (which in my understanding is basically a way to abuse Google and Apple syncing mechanisms, not really the "passkey" technology), yes, I agree with DHH and I think passkeys are a dystopic solution created by a cabal of evil corporations with the intention of locking up users and they don't actually solve anything as for most traditional apps they cannot ever replace passwords fully and they still rely on other authentication methods for recovery (i.e. an email address, preferably hosted at @gmail and tied to a phone number) so it's just making things worse in all fronts and I hope they die soon.

Yes, I'm gonna use passkeys to help simplify nostr key management when accessing nostr apps. The nsecs will be importable/exportable. All the pieces are almost in place to put it online for everyone to test. I just need to go back to drinking coffee or someone to whip my back.

Passkeys have become better with time. We don't need Apple/Google/MS/some-linux-distro-support anymore. E.g. Bitwarden (can be self-hosted) has a browser extension and native apps, supports passkeys and syncs keys across devices no matter the OS.