anchor.diff: -{ nixpkgs ? <nixpkgs>
  -, nix ? { outPath = ./.; revCount = 1234; shortRev = "abcdef"; }
  +{ nix ? { outPath = ./.; revCount = 1234; shortRev = "abcdef"; }
   , officialRelease ? false
   }:
   
   let
   
  +  pkgs = import <nixpkgs> {};
  +
  +  systems = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "x86_64-freebsd" "i686-freebsd" "i686-cygwin" "i686-solaris" ];
  +
  +
     jobs = rec {
   
   
       tarball =
  -      with import nixpkgs {};
  +      with pkgs;
   
         releaseTools.sourceTarball {
           name = "nix-tarball";
  
positive.code:   makeDeb =
      system: diskImageFun: prio:
  
      with import nixpkgs { inherit system; };
  
      releaseTools.debBuild {
        name = "nix-deb";
  
negative.code:             --transform "s,$TMPDIR/install,/usr/bin/nix-finish-install," \
              --transform "s,$TMPDIR/reginfo,/nix/store/reginfo," \
              $TMPDIR/install $TMPDIR/reginfo $storePaths
          '');
  
  
      coverage =
        with import <nixpkgs> { system = "x86_64-linux"; };
  
        releaseTools.coverageAnalysis {
          name = "nix-build";
  