Setting up working FIDO2 key in Guix

[Jonathan Brielmaier]

Hey Ray,

I'm using a Nitrokey 3A NFC under Guix System.

I have the following in my config.scm:
(use-package-modules security-token)
[...]
(udev-rules-service 'nitrokey libnitrokey)

And FIDO in the web browser does work for me (e.g. gitlab.com or
webauthn.io).

~Jonathan