I could see the connect stylus after refresh, but unfortunately it didn't seem to work, either on the Cintiq or the Intuos Pro. If there's some mailing list or a roadmap, I'll definitely be interested in checking out again in some time, or even beta-test :-)

So what could go wrong is lack of permission. Can you try doing "chmod 666 /dev/hidraw*" on root on trying again?

Sorry, that did not change anything. It's a bit late in Europe now, but don't hesitate to let me know about a beta.

Can you message me at damian@magmastudio.io and I'll reply with some additional details? :) I'd like to make sure Magma works for you.