anchor.diff:          CatalystViewDownload
           CatalystViewJSON
           CatalystViewTT
  +        CatalystXScriptServerStarman
           CatalystXRoleApplicator
  -        CatalystXScriptServerStarman
           CryptRandPasswd
           DBDPg
           DBDSQLite
  
positive.code: { stdenv, nix, perlPackages, buildEnv, releaseTools, fetchFromGitHub
  , makeWrapper, autoconf, automake, libtool, unzip, pkgconfig, sqlite, libpqxx
  , gitAndTools, mercurial, darcs, subversion, bazaar, openssl, bzip2, libxslt
  , guile, perl, postgresql, nukeReferences, git, boehmgc
  , docbook_xsl, openssh, gnused, coreutils, findutils, gzip, lzma, gnutar
  , rpm, dpkg, cdrkit, pixz, lib, fetchpatch, boost, autoreconfHook
  }:
  
negative.code:       guile # optional, for Guile + Guix support
        perlDeps perl nix
        postgresql # for running the tests
        nlohmann_json
      ] ++ lib.optionals isGreaterNix20 [ boost ];
  
    hydraPath = lib.makeBinPath (
  