anchor.diff:        };
   
       environment.systemPackages = with pkgs;
  -      [ php phab-admin nodejs which ];
  +      [ php phab-admin nodejs which imagemagick ];
     };
   }
  
positive.code:     cat ${php}/etc/php-recommended.ini > $out
  
      echo "extension=${phab-apc}/lib/php/extensions/apc.so" >> $out
      echo "extension=${phab-suhosin}/lib/php/extensions/suhosin.so" >> $out
      echo "apc.stat = '0'" >> $out
      substituteInPlace $out \
        --replace ";upload_max_filesize = 2M" \
                  "upload_max_filesize = ${cfg.uploadLimit}"
    '';
  
  
negative.code:             ${phab-admin}/sbin/phab-config set storage.local-disk.path \
                ${cfg.localStoragePath}
            ''}
            ${phab-admin}/sbin/phab-config set files.enable-imagemagick true
            ${phab-admin}/sbin/phab-config set storage.mysql-engine.max-size 0
            ${phab-admin}/sbin/phab-config set storage.upload-size-limit \
              ${cfg.uploadLimit}
  