There are various flavours of Indi Ekos on Raspberry Pi. The easiest thing to do is get a new SD card and keep the Asair one. The just install the free Astroberry image. www.indilib.org/raspberry-pi/astroberry-server.html
Very straightforward and you get a great range of device drivers. I haven't used ASair, but not sure of added benefit of using Asair branded version.