Well, I'd be very happy to have you involved more in those decisions.
You mention you don't have much time for that right now - but maybe you can help us with decisions, etc. regarding the hardware drivers and kernel.
Right now, we're simply using the Letux-Kernel from Nikolaus, our own kernel-git is not being used.
I'd be more than happy if you would like to take care of our kernel, and even if you don't have time to code, at least give some directions how some things would work best.
I have not much knowledge about joysticks or xinput devices in Linux, their pros and cons, but if you can help us decide, then we can make a list what needs to be coded and any developer can pick it up and code it.
It's up to you whether you think you can find the time or not or want to do it and I totally respect your decision, but it'd be really helpful, as you're really knowleadgable in these areas.