just got the #passkey demo on https://www.passkeys.io/ working on #linux
- distro: pop OS ("Ubuntu")
- browser: #firefox 120.0.1
- seurity key: #yubikey 5 NFC
'just worked' after setting a #FIDO2 PIN via YubiKey Manager https://support.yubico.com/hc/en-us/articles/360016649039-Enabling-the-Yubico-PPA-on-Ubuntu#01H30DBXGX5RDD4AM7M815GAA3