AOSA (Architecture of Open Source Applications) [1] is one resource that comes to my mind. However, not all projects are described in equal detail since multip

AOSA (Architecture of Open Source Applications) [1] is one resource that comes to my mind. However, not all projects are described in equal detail since multiple authors contribute to it. [2][3] are some of the more detailed ones. [1]: http://aosabook.org/en/index.html http://aosabook.org/en/index.html [2]: http://aosabook.org/en/freertos.html http://aosabook.org/en/freertos.html [3]: http://aosabook.org/en/bdb.html http://aosabook.org/en/bdb.html