@klaus
Thanks for becomming a patron.
I have been working on debugging the last weeks and things have changed a lot. It is all a lot easier easier now.
I'm planning to make a video on it and as a patron you'll be with the first ones to see it. But it is so easy a video is not really needed 
When you upgrade to the nightly and use the json file https://raw.githubusercontent.com/jantje/hardware/master/package_jantje_index.json and install the pc boards you should be able to get local debugging up and running.
Best regards
Jantje