anchor.diff:    nixosTarball = makeTarball "nixos.tar.bz2" ../..;
   
   
  +  # Put Services in a tarball.
  +  servicesTarball = makeTarball "services.tar.bz2" services;
  +
  +
     # Put Nixpkgs in a tarball.
     nixpkgsTarball = makeTarball "nixpkgs.tar.bz2" nixpkgs;
   
  
positive.code:               tar xjf /install/nixos.tar.bz2 -C /etc/nixos/nixos
                mkdir -p /etc/nixos/nixpkgs
                tar xjf /install/nixpkgs.tar.bz2 -C /etc/nixos/nixpkgs
                chown -R root.root /etc/nixos
              end script
            ";
  
negative.code: , configurationOverrides ? (config: {})
  # Whether to put all the build-time dependencies on DVD
  , includeBuildDeps ? false
  , includeTarballs ? true
  }:
  
  rec {
  