anchor.diff:        then set // { meta = builtins.removeAttrs (set.meta or {}) [ "maintainers" ]; }
         else pkgs.lib.mapAttrs (n: v: removeMaintainers v) set
       else set;
  +
   in rec {
     nixos = removeMaintainers (import ./release.nix {
       inherit nixosSrc officialRelease;
  
positive.code:     name = "nixos-${nixos.tarball.version}";
      meta = {
        description = "Release-critical builds for the NixOS unstable channel";
        maintainers = [ pkgs.lib.maintainers.shlevy ];
      };
      constituents =
        [ nixos.channel
          nixos.manual
  
          nixos.iso_minimal.x86_64-linux
          nixos.iso_minimal.i686-linux
          nixos.iso_graphical.x86_64-linux
          nixos.iso_graphical.i686-linux
  
          nixos.tests.firefox.x86_64-linux
          nixos.tests.firewall.x86_64-linux
          nixos.tests.installer.lvm.x86_64-linux
          nixos.tests.installer.separateBoot.x86_64-linux
          nixos.tests.installer.simple.i686-linux
          nixos.tests.installer.simple.x86_64-linux
          nixos.tests.kde4.i686-linux
          nixos.tests.login.i686-linux
          nixos.tests.login.x86_64-linux
          nixos.tests.misc.i686-linux
          nixos.tests.misc.x86_64-linux
  
          nixpkgs.tarball
          nixpkgs.emacs.i686-linux
          nixpkgs.emacs.x86_64-linux
        ];
    };
  
  
negative.code: }:
  
  let
  
    nixpkgs' = nixpkgs; # urgh
  
    pkgs = import <nixpkgs> {};
  