Hello Maxim, this patch is confusingly about the Guile website, not Guix. ;) That is https://git.savannah.gnu.org/git/guile/guile-web.git
It uses Guix to generate the Guile package list, where guile-gnunet has homepage https://gnu.org/software/guix and is thus called Guix in the Guile website library page. This patch special-cases guile-gnunet like other special-case libraries. Thank you for looking at the patch, though I do not know if you can push to guile-web.git. Regards, Florian