Rig Manager for Linux would be great!
Please release the sources of your Kemper USB driver and I guarantee you magic will happen. The "oh my god our IP" is just a reflex and from my current investigation neighter the Rig Manager Software nor the Kemper Device driver is rocket science (and I am still not sure why there is the win8 requirement - my bad bet is that this is not a requirement of the USB device driver).
You may know that alot of the linux kernel device drivers (were initialy)/are reverse engineered Windows/* device drivers - this just takes alot more time and testing effort for people/devs that are giving you the "Kemper Rig Manager now supports Linux" feature for free.