anchor.diff:  let
     cfg = config.services.nextcloud;
     fpm = config.services.phpfpm.pools.nextcloud;
  +
  +  jsonFormat = pkgs.formats.json {};
   
     phpPackage = pkgs.php74.buildEnv {
       extensions = { enabled, all }:
  
positive.code:     };
  
      extraOptions = mkOption {
        type = with types; attrsOf anything;
        default = {};
        description = ''
          Extra options which should be appended to nextcloud's config.php file.
  
negative.code:       default = null;
        description = ''
          Secret options which will be appended to nextcloud's config.php file (written as JSON, in the same
          form as the <xref linkend="opt-services.nextcloud.extraOptions"/> option), for example
          '{"redis":{"password":"secret","timeout"=2}}'.
        '';
      };
    };
  