so here I got an open-source Android app which I must analyze and identify the structure of, things like its libraries, high-level architecture, configuration management, and testing facilities.
Now I understand where and how to look for the last two, but I still rather confused on how can I identify the libraries and architecture.
So what I'm asking is, how do I identify the architecture of an app and the libraries it uses? where do I look for it? what part of the source code? are there any tips to do this?
If there is any other info that I should provide, please do tell me.
Edit1: this is what I meant by high-level architecture, using Firefox as an example, but it doesn't have to be this technical, something more simple is also okay >>>