Hi, Nome Grey skribis: > Ludovic posted some channels.scm code in September 2018 supporting using > more substitutes. Unfortunately his code no longer functions due to an > upgrade of guile-json in guix. > > I've tried to learn enough guile to upgrade the code to the newer json > structures, and posted my changes to github at > https://github.com/nomr72/guix-substitutes-channel . It seems to run again > now. Nice, thanks for sharing! Ludo’.