Just published a new blogpost on how to publish a #godotengine game to #fdroid
https://simondalvai.com/blog/godot-fdroid-publish
Feel free to comment here 
simondalvai.com How to publish a Godot 3.x game to F-Droid - Simon Dalvai How to build and publish an Open Source Godot Engine 3.x game to F-Droid