- cd into the folder where the submodule should be
- git submodule add https://github.com/bhr/BHRExtensions
- Drag and Drop Xcodeproj into your workspace
- Project Settings -> Link Framework
- Project Build Settings -> Other Linker Flags -> Add '-ObjC'
- Move Framework header file to project (don't copy)
- Place '#import "BHRExtensions.h"' in the precompiled header of your project or where you need it!