1st time posting. Matthias, thank you for this site. it is a wealth of information. I have been able to configure an esp32 with the MTC4BT firmware and use rocrail successfully using a public MQTT broker!! I was wondering if there is a way to specify credentials for my local mqtt broker in the network_config file? my local broker is mosquitto running through home assistant which requires username and password. after much research, i do not think there is a way for the home assistant mosquitto broker to accept anonymous users or null username/password. I have tried to add “password” and “username” lines to the network_config.json file but this does not work. any suggestions? thank you again for this wonderful site.