Dear All This is my first attempt to connect to my personal Guix channel. After ironing out server-side inadequacies in my configuration code, I encountered a very resilient, cryptic error. After one day of experimentation, where nothing I did made the error change, I turn to your experience and knowledge. Could I ask to take a look at my repository ( hosted on https://git.marekpasnikowski.pl/channel.git , branch wip-channel - master has incorrect parens in authorization code ) and see if I missed anything in the file structure? Also, I would appreciate a confirmation whether the channel can be pulled on your system. I do keep in mind a possibility of a local impurity or cache poison. Here is my current channels.scm: ( list ( channel ( name 'guix ) ( branch "master" ) ( url "https://git.savannah.gnu.org/git/guix.git" ) ( introduction ( make-channel-introduction "9edb3f66fd807b096b48283debdcddccfea34bad" ( openpgp-fingerprint "BBB0 2DDF 2CEA F6A8 0D1D E643 A2A0 6DF2 A33A 54FA" ) ) ) ) ( channel ( name 'personal-channel ) ( branch "wip-channel" ) ( introduction ( make-channel-introduction "f8ccfe8f3e5c8bafe06665cbd4b0c9301e1a64b6" ( openpgp-fingerprint "590E 500F E39D 26B3 E60B 743B 6D81 B120 7711 899F" ) ) ) ( url "https://git.marekpasnikowski.pl/git/channel.git" ) ) ) And this is the COMPLETE build log I receive every single time: $ zcat /var/log/guix/drvs/hg/15jjf4dr5z7lsfvcj07z2mrw69kzvp-personal- channel.drv.gz (repl-version 0 1 1) (exception unbound-variable (value #f) (value "Unbound variable: ~S") (value (channel)) (value #f))