The Azeron and reWASD software are Windows only, unfortunately. That said, there is storage for two profiles in the device, so it can be used with a Linux machine after it is configured with the Azeron software. I’ve heard of folks using AntiMicroX on Linux to configure it, but have never tried myself.
The process for submitting feature requests is here: https://source.android.com/docs/setup/contribute/report-bugs