I forgot to attach the two PAM related commits, apologies for the noise.
[0]: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=3eb720bd0b4bab233918f979bb51b58437db06ad [1]: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=9411a1495f7cb2b116129a71a1fc1817e962fa5d
