Oddbean new post about login | logout 1. No (although they might be able to add support for it if they wanted to) 2. It's not a perfect fit, because you don't want to lose your Nostr identity when you lose or break your Yubikey
Yubis are meant to have backups, it's a perfect fit
The whole point of a hardware key is that you cannot extract the private keys. Since when does Yubico allow you to do that?
I think the idea here would be to add your nsec to one of the additional smart card slots. Similar to how you can add your own GPG key to your YubiKey