briar-*
: Specifically for the Briar app (Phone/Desktop/Headless)bramble-*
: The protocol stack - not necessarily Briar-dependent*-api
: public stuff that can be referenced from other packages and modules - mostly interfaces + a few utility classes*-core
: implementations of api that are portable across Android/Desktop/Headless*-java
: implementations of api that are specific to Desktop & Headless