This website is built with Node.js, with the specific version managed by nvm:

nvm install && nvm use

and its dependencies are managed by npm:

npm install

This website is built with Node.js:

node index

The resulting build directory contains the output, similar to:

build
├── index.html
└── static
    ├── css
    │   └── styles.css
    ├── img
    └── js
        └── scripts.js

This website is set up to be hosted with Netlify. They have a very detailed blog article on how to get started with Metalsmith.