What exactly are you missing? You know you can just write Java code and use it in Cerberus, right?
Years ago I've made a small prototype trying to get a government grant, a game that used voice recognition and text to speech to communicate with the players. Took Google docs, wrote the necessary things in Java and just called it from inside Monkey (Cerberus didn't even exist back then) - worked like a charm.
Look at my
rewarded ads post that has code on it to see how its all glued together. Its a bit harder if you have callbacks (I haven't figured out a good way to do it so far), but it can be done and maybe that's a solution for you?
I know I can write the exnensions myself and I was trying for awhile, the only reason why I stopped was time. I don't have too much money yet to spend either so, I need to use whatever exists. The actual extensions I need is, to be able to load and save PNG in Android with reuquest (you don't force anything programmtically in Android anymore, well you can do it the old way with direct file access to any place in your system,, including cards and whateeve in API 30+ and above but if you go that route you are still not allowed to put it in the store. I need user-requested loads/save extension, those are done now using something called FILEPROVIDER in adnroid, and they are the offical way to access files today. The save function could be a share function with file as an option , that would be okay too. That's all.
The Ad-mob should be working as it was updated a few months ago but I have not tested it bc f the file issue have been wrking on.
There's also a slight issue on how to handle unmanaged textures as FBO's instead as simple textures, that gets lost at context switches. You need to do this in all platforms so this is just a problem that I need to learn how to deal with it. I think Cerberus-x itseld can deal with it using a few opengl commands inserted in the app/Game main loop, But I have not tested it yet. It is the same with every engins, also LibGDX which is a very fine librry. Most ppl have problem with this context thign on Adnroid and they also missunestand ir and think that unmanaged textures is the same as FBOs. A certain Bot have teached me this
So if the texture, and admob are fixable(they might very well work the first test), which I hope.. then I would say PNG laod/Save is the only obstacle why I cannot use CX for this project. It feels like it should be an easy fix but I'm really not that strong in this area right now. I would need too much time.