1. You need a Common Lisp implementation. Only tested on SBCL right now. 2. Then link the huma4drl.asd file into your ~/.sbcl/systems directory: mkdir ~/.sbcl mkdir ~/.sbcl/systems ln -s ~/src/huma4drl/huma4drl.asd ~/.sbcl/systems 3. At the shell, cd to the the directory with this file, run SBCL, and then at the REPL, type: (require :huma4drl) (in-package :huma4drl) (output [dir]) ;; 'dir' is optional destination