In this video I want to demo real-world Lisp stuff I had trouble finding tutorials for: how to create a CL project: what’s in the .asd file? what’s a simple package definition? how do we load everything in our editor (Emacs and SLIME here)? how to set up tests? and how to run them from the terminal? and (WTF) how to get the correct exit code???? how to build a binary in order to run our app from the terminal?