anchor.diff:          default = "";
           description = ''
             Extra configuration that should be put in the global section of
  -          the PHP FPM configuration file. Do not specify the options
  +          the PHP-FPM configuration file. Do not specify the options
             <literal>pid</literal>, <literal>error_log</literal> or
             <literal>daemonize</literal> here, since they are generated by
             NixOS.
  
positive.code:           inherit lib;
          }));
          default = {};
          description = ''
            If no pools are defined, the phpfpm service is disabled.
          '';
        };
      };
  
negative.code:           }
          '';
          description = ''
            A mapping between PHP-FPM pool names and their configurations.
            See the documentation on <literal>php-fpm.conf</literal> for
            details on configuration directives. If no pools are defined,
            the phpfpm service is disabled.
  