Being a #FreeSoftware maintainer is not about coding; @bzg explained that very clearly:
https://bzg.fr/en/how-to-help-gnu-emacs-maintainers/ (HT to zimoun!)

The #Guix maintainer to-do list as we sketched it in 2019 is similar and involves very little coding:
https://guix.gnu.org/en/blog/2019/gnu-guix-maintainer-collective-expands/