May need to brew install libsdl2-dev
brew install sbcl # or apt-get if you nasty playa
curl -O https://beta.quicklisp.org/quicklisp.lisp > quicklisp.lisp
sbcl --load quicklisp.lisp # and follow the prompts
git clone git@github.com:kingcons/clones.git ~/quicklisp/local-projects/clones.git