Arduino FIDO2 Authenticator
This is pretty cool, and being able to make a FIDO2 device that I can just keep at home next to the PC is pretty appealing. I already have a Yubikey in my keychain for carrying with me, but the keychain isn't at my desk, so having a second one would be pretty great.It would be amazing if this supported FIDO2 resident mode, it could store thousands of credentials (Yubikeys can only do 25 non-thousand credentials).