Here are my slides from CCCamp2015:

Lightning talk:
https://neo900.org/stuff/werner/light/

Full-length talk:
https://neo900.org/stuff/werner/ccc2015talk/

Sorry about the inconsistent naming - by the time I realized that just "talk" would be a collision waiting to happen, "light" was already known at various places and I didn't dare to change it.

The sources of both are under
https://neo900.org/git/?p=misc;a=tree;f=ccc2015

Thanks to all who came to see us at the camp !

- Werner