anchor.diff:    buildPhase = ''
       mkdir -p $pluginDir
       python3 uwsgiconfig.py --build nixos
  -    ${lib.concatMapStringsSep ";" (x: "${x.interpreter or "python3"} uwsgiconfig.py --plugin ${x.path} nixos ${x.name}") needed}
  +    ${lib.concatMapStringsSep ";" (x: "${x.preBuild or ""}\n ${x.interpreter or "python3"} uwsgiconfig.py --plugin ${x.path} nixos ${x.name}") needed}
     '';
   
     installPhase = ''
  
positive.code: , pam, withPAM ? false
  , systemd, withSystemd ? false
  , python2, python3, ncurses
  , ruby
  }:
  
  let pythonPlugin = pkg : lib.nameValuePair "python${if pkg ? isPy2 then "2" else "3"}" {
  
negative.code:     homepage = "http://uwsgi-docs.readthedocs.org/en/latest/";
      description = "A fast, self-healing and developer/sysadmin-friendly application container server coded in pure C";
      license = licenses.gpl2;
      maintainers = with maintainers; [ abbradar schneefux ];
      platforms = platforms.linux;
    };
  }
  