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.