anchor.diff:  
       services.rspamd = {
   
  -      enable = mkOption {
  -        default = false;
  -        description = "Whether to run the rspamd daemon.";
  -      };
  +      enable = mkEnableOption "Whether to run the rspamd daemon.";
   
         debug = mkOption {
           default = false;
  
positive.code:         ${pkgs.coreutils}/bin/mkdir -p /var/lib/rspamd
          ${pkgs.coreutils}/bin/chown ${cfg.user}:${cfg.group} /var/lib/rspamd
        '';
  
      };
  
    };
  
  }
  
negative.code:         '';
         };
      };
    };
  
  
  