maikel , Are there any FUN ways to use a Yubikey other than:
- login in Ubuntu using it.
- sudoing in Ubuntu using it.
- su in Ubuntu using it.
- Upgrading Ubuntu using it
????
Am I missing something?
(beware I'm talking about the NFC security key, the one with FIDO2 U2F, not the pricey 5 one with all other stuff)