anchor.diff:  
   
       tarball =
  -      { nix ? {outPath = ./.; rev = 1234;}
  -      , officialRelease ? false
  -      }:
  -
         with import nixpkgs {};
   
         releaseTools.sourceTarball {
  
positive.code: 
  
      build =
        { tarball ? jobs.tarball {}
        , system ? "i686-linux"
        }:
  
        with import nixpkgs {inherit system;};
  
        releaseTools.nixBuild {
          name = "nix";
          src = tarball;
  
          buildInputs = [curl perl bzip2 openssl];
  
          configureFlags = ''
            --disable-init-state
  
negative.code:   
    makeDeb =
      system: diskImageFun: prio:
  
      with import nixpkgs { inherit system; };
  
      releaseTools.debBuild {
        name = "nix-deb";
        src = jobs.tarball;
        diskImage = diskImageFun vmTools.diskImages;
        memSize = 1024;
        meta = { schedulingPriority = prio; };
        configureFlags = "--sysconfdir=/etc";
        debRequires = [ "curl" ];
      };
  
  
  