(list
 (channel
  (name 'nonguix)
  (url "https://gitlab.com/nonguix/nonguix")
  (branch "master"))

 (channel
  (name 'ruther)
  (url "https://github.com/Rutherther/guix-exprs")
  (branch "main"))

 (channel
  (name 'guix)
  (url "https://git.savannah.gnu.org/git/guix.git")
  (branch "master")))