Node Version Manager (NVM) is a tool that will allow you to download and install multiple versions of Node.js, one of the environments for the JavaScript programming language that we teach at Academy Xi. Installing NVM is the first step in installing Node.js on your macOS operating system.

1. Open the "Terminal" application using "Spotlight Search"
2. Type curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | zsh and press <Enter>
3. Close the "Terminal" application
4. Reopen the "Terminal" application using "Spotlight Search"
5. Type nvm and press <Enter>

If you see a message ending with "Note: to remove, delete, or uninstall nvm", continue below.

For our JavaScript labs and lessons, we expect that students use Node.js on their macOS operating system. If Node Version Manager (NVM) has been successfully installed, you can quickly install Node.js with a couple of commands.

1. Open the "Terminal" application using "Spotlight Search"
2. Type nvm install node and press <Enter>
3. Type nvm list and press <Enter>

If you see a message starting with "-> v14.13.0" (or any higher number, like "-> v14.13.10" or "-> v15.0.0"), continue to the next lesson, Installing Ruby on macOS.