I've got one of these, and I wanted it to live atop my Raspberry Pi running OSMC. The software tab on the product page says:
The easiest way to control your XMAS board is with GPIO Zero. This is pre-installed in Raspbian Stretch
…and sadly for me, whatever version of OSMC I have is based on Debian Jessie. apt didn't have the GPIO Zero libraries, and I don't know enough about pip / the-Python-ecosystem to fix that. I don't know Python anyway, so I wrote this, in Go.
Download the binary from the releases tab. Or build it yourself if you've got a working Go environment; remember to add GOARCH=arm if you're not building on a Raspberry Pi (or other ARM device).