anchor.diff:    dbOptions = {
       type = mkOption {
         description = "Rippled database type.";
  -      type = types.enum ["rocksdb" "nudb" "sqlite"];
  +      type = types.enum ["rocksdb" "nudb" "sqlite" "hyperleveldb"];
         default = "rocksdb";
       };
   
  
positive.code: 	default = "error";
        };
  
        extraConfig = mkOption {
          default = "";
  	description = ''
  
negative.code: 	  Path to the ripple database.
  	'';
  	type = types.path;
  	default = "/var/lib/rippled";
        };
  
        validationQuorum = mkOption {
  