@Gustav_Tillback thank you for this summary although i guess it is not noob-proof
I’ve managed to get the broker up and running with the scanno Athom app. I (guess i) configured the MQTT Client app but i am not sure if i filled in all the correct fields. In the log i can see a lot of message activity (SendMessageToTopic) which should confirm some kind of broadcasting (i’m a complete noob).
In the MQTT hub, under devices, i keep getting a spinning wheel and no list of devices.
At 5) in your summary i guess i need to configure a new MQTT integration with my Homey IP address without username and password? As expected it is saying there are no devices.
Obviously i am missing a lot (and do a lot of guessing as you might have noticed)
Could you help me in the right direction?