nixos-servers/services/home-assistant/default.nix

{ pkgs, ... }:
{
  # Enable the Home Assistant service
  services.home-assistant = {
    enable = true;
    configWritable = true;
    config = null;
    extraPackages = python3Packages: with pkgs.python3Packages; [
      radios
    ];
    customComponents = with pkgs.home-assistant-custom-components; [
    ];
  };

  # Enable the mosquitto MQTT broker
  services.mosquitto = {
    enable = true;
    persistence = true;
  };

  # Enable the zigbee2mqtt service
  services.zigbee2mqtt = {
    enable = true;
    settings = {
      permit_join = true;
      serial.port = "/dev/ttyUSB0";
    };
  };
}