(list (channel
       (name 'guix)        ; https://git.savannah.gnu.org/git/guix.git
       (url "file:///home/mab/src/git/guix"))
      (channel
       (name 'guix-mab)          ; https://git.sr.ht/~bandali/guix-mab
       (url "file:///home/mab/src/git/guix-mab")))