anchor.diff:          logfile = cfg.logfile;
           syslog-enabled = cfg.syslog;
           databases = cfg.databases;
  +        maxclients = cfg.maxclients;
           save = map (d: "${toString (builtins.elemAt d 0)} ${toString (builtins.elemAt d 1)}") cfg.save;
           dbfilename = "dump.rdb";
           dir = "/var/lib/redis";
  
positive.code:         type = types.int;
          default = 16;
          description = "Set the number of databases.";
        };
  
        save = mkOption {
  
negative.code: 
  let
    cfg = config.services.redis;
  
    ulimitNofile = cfg.maxclients + 32;
  
    mkValueString = value:
      if value == true then "yes"
  