My previous email to help-guix must have been confusing. I joined this group only because of a complete misunderstanding of what "Guix" means. I was really referring to my computer's graphic user interface (Xwindows, GNOME, etc.). I'm having trouble remembering lots of new acronyms, so when I recognized the letters "gui", I jumped to the wrong conclusion. (I even guessed that the "x" might refer to "Xwindows".) I will look again at the list of GNU help groups and see if there is one more suited to the subject.