This guide covers the basics of setting up a development environment on a new Mac. Whether you are an experienced programmer or not, this guide is intended for everyone to use as a reference for setting up your environment or installing languages/libraries. Some environments we will set up are Node (JavaScript), Python, C++ and Ruby. Even if you don't program in all of them, they are useful to have as many command-line tools rely on them. We'll also show you some useful daily use applications...