I use Qt6 communicate to my MQTT broker. After register Qt personal user I can not use the default commercial license module qtmqtt.

So I download source and manual build the module qtmqtt with QT Creator. Then add CMake Key/Value Qt6Mqtt_DIR/qtmqtt cmake to QT Creator Build Settings.

I can build my learning source code to application and run success.

I commit my learning code to my codeberg project.