Hey,
Its working on all of my Vega rigs. I uploaded the source code of the modified xmr-stak.
The part which activates hbcc and calls the miner is not open source.
If the license of xmr-stack does not allow this, I will delete it. Please let me know.
Looks good, dev fee for your address is completly fine, but I think GNU GPL say that you have to give all source codes if you release it to the public.
Did you try the app? Is it really working? After watching the video, it looks like he's not even setting HBCC sliders with Wattmann.