Setup Nodejs and npm - spaceshiptrip/raspberrypi GitHub Wiki

1. Find the current version of nodejs LTS --> https://nodejs.org/en/about/releases/
2. At the time of writing, current LTS version was 15. Your mileage may vary.
3. curl it down:

   curl -sL https://deb.nodesource.com/setup_15.x | sudo bash -
   

4. Once the repository is enabled, install Node.js and npm by typing:

   sudo apt-get install -y nodejs
   

5. Clean up - Recommended:

   sudo apt autoremove
   

6. From their installation instructions:

   ## Run `sudo apt-get install -y nodejs` to install Node.js 15.x and npm
   ## You may also need development tools to build native addons:
     sudo apt-get install gcc g++ make
   ## To install the Yarn package manager, run:
     curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
     echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
     sudo apt-get update && sudo apt-get install yarn
   

7. Install forever.js

https://www.npmjs.com/package/forever