Good points! It seems like it would have to be slowing things down since it relays messages, but maybe it would still be acceptable.
Yea I agree on both! That would open the door to many options. Can we start brainstorming more about how to get an MQTT client inside farmOS? I just created a separate topic for node-red, could you start a topic for MQTT @MBConsultingUK with some initial ideas? You seem to be the most experienced working with it