Hi Stian and thanks for sharing!
We would need to test this before we can update the tutorial. The challenge is getting the certificate data loaded into the SARA-R410M modem / board.
If you have suggestions for changes, please feel free to open a GitHub pull request in the Arduino MKR NB 1500 MQTT repository: https://github.com/TelenorStartIoT/arduino-dev-kit-mqtt
You can also send any code to [email protected] This would be greatly appreciated!