nvm

We will use the long-term stable (LTS) release of Node.js (Version 8) to ensure that we're using the most stable version of the platform. We will use nvm to manage Node.js versions. This will prevent conflicts if you already have a higher (or lower) version of Node.js installed on your computer. nvm allows you to have multiple versions of Node.js installed that you can quickly switch to and isolate in the context of a single terminal window.