Thanks for considering helping with this repository! All contributions are welcome.
One thing to note is that this game is, first and foremost, a sample. As such, it MUST stay relatively straightforward and simple. A real game, in contrast, would care much less about straightforwardness and simplicity of the code, and much more about gameplay, features, and things like MAU.
For example, if this was less of a sample and more of an actual game, I would go ahead and add internationalization. It would be really easy to add in the case of this game. But it would also make the sample murky, and internationalization isn't what developers are coming here to learn.
In other words: let's keep it simple.