Handel is a CLI tool written in Node.js. In order to install it, you will first need Node.js installed on your machine.
The easiest way to install Node.js is to download the compiled binaries from the Node.js website. Handel requires Node.js version 6.x or greater in order to run.
Once you have completed the installation on your machine, you can verify it by running these commands:
node --version npm --version
The above commands should show you the versions of Node and NPM, respectively.
Once you have Node.js installed, you can use the NPM package manager that is bundled with Node.js to install Handel:
npm install -g handel
When the above commands complete successfully, you should be able to run the Handel CLI to deploy your application.