devoxx.properties missing

[zeekoe]

Since I don't have Play Store, I tried to download the app using Yalp store. Yalp's fake account creation doesn't seem to work, and google now requires a phone number to verify an account - which I won't give them. When I saw the app is open source, I decided to compile myself.
TL;DR However, the devoxx.properties is missing. The readme says nothing about it. Is it on purpose that self compiling won't work? Is there an alternative, trusted way to get the apk?