To use it :
- build it as a framework on any physical device ( architectures lipo -info Boxcar should be i386 x86_64 )
- get the path of the result .framework
- build it as a framework on any simulator ( architectures lipo -info Boxcar should be armv7 arm64 )
- get the path of the result .framework
Then merge both architectures : run lipo -create path/to/physical path/to/simulator -output Boxcar
then copy the whole .framework folder with the new Boxcar binary into your project.