{
  makeSystem,
  nixpkgs,
}:
makeSystem {
  system = "x86_64-linux";
  name = "nixng-zigbee2mqtt";
  inherit nixpkgs;
  config = {pkgs, ...}: {
    config = {
      dumb-init = {
        enable = true;
        type.services = {};
      };

      init.services.zigbee2mqtt = {
        shutdownOnExit = true;
      };

      services.zigbee2mqtt = {
        enable = true;
        user = "root";
        envsubst = true;
        config = {
          homeassistant = true;
          permit_join = false;
          mqtt = {
            base_topic = "zigbee2mqtt";
            server = "mqtt://127.0.0.1:1883";
            user = "\${MQTT_USER}";
            password = "\${MQTT_PASSWORD}";
          };

          frontend = {
            port = 8456;
            host = "0.0.0.0";
          };

          advanced.pan_id = 15408;
          advanced.channel = 15;

          serial.port = "/dev/ttyUSB0";

          devices = "devices.yaml";
          groups = "groups.yaml";
          log_level = "debug";
        };
      };
    };
  };
}