Git messages follows ChangeLog format, which you could apply by using ‘etc/snippets’ in case you are an Emacs user. See https://www.gnu.org/software/guix/manual/html_node/The-Perfect-Setup.html --8<---------------cut here---------------start------------->8--- gnu: Add sbcl-stumpwm-pass. * gnu/packages/wm.scm (sbcl-stumpwm-pass): New variable. --8<---------------cut here---------------end--------------->8--- Oleg.