Provide location information (GPS) for Android in Anbox

I want to run Osmand on Anbox on Odroid N2 and I am nearly there. The part I am stuck on is getting location to work. I see there is something called "Goldfish GPS Module" and indeed in my Android installation I can see /system/lib/hw/gps.goldfish.so Now, this module seems to communicate over channel named "gps". The question is how do I actually provide any data to it? Or to put it in other words: where is the other end of the channel? How do I provide any data to it either real (from hardware GPS module) or fake? Or maybe I should be using another way altogether?