Reference: Original Install Guide: https://home-assistant.io/blog/2016/02/09/Smarter-Smart-Things-with-MQTT-and-Home-Assistant/ New Built-in MQTT Broker: https://home-assistant.io/components/mqtt/ Reddit Notes Instructions on the original blog post includes a step that's no longer needed - MQTT Broker is already included as a component of HomeAssistant now. Set up