Used original 64-bit frameworks: SDL2 v.2.0.5, SDL2_image v.2.0.1, and from SDL2_mixer v.2.0.1: Ogg v.1.3.1 and Vorbis v.1.3.3. For potential custom compiling AC for 32-bit Mac there will be needed self-compiled 32-bit frameworks. Launcher has to be compiled as 32-bit, otherwise it won't start nowadays.