Yubikey setup for GPG

[LaFreniere, Joseph]

Does anyone have a working guide for setting up a Yubikey for use 
with GnuPG in Guix System?  It seems that the packaged gpg is 
built with pcsc-lite rather than scdaemon, so much of the 
information in e.g. the Arch wiki is not applicable.

The specific error I'm getting when running `gpg2 --card-status` 
is

> gpg: selecting card failed: No such device
> gpg: OpenPGP card not available: No such device

--
Joseph LaFreniere