Nix: Garbage Collection Services Run On Tuesday

Nix Garbage Collection Here's a quick recipe:

    nix-channel --update (descriptions (derivations) of all software)
    nix-env -u --always (upgrade installed packages)
    rm /nix/var/nix/gcroots/auto/*
    nix-collect-garbage -d

Garbage Collection Go have a look through /nix/var/nix/gcroots/. These are the garbage collection roots. Whatever they point to and say "I still need that" should be protected in a garbage collection cycle.