This project is using eleventy to build static sites with Nunjucks and tailwind to use an easy approach for styling.
Simply install the relevant packages with npm i and run the code with npm start.
Eleventy will build the files in the src folder and deploy them to the _site folder. Running the command npm start will run a development server reacting to changes made and refreshing the build sites.
Eleventy is a plain and simple page builder. It uses a templating language (I used Nunjucks) and is passing data into that template to build a static HTML file. It uses the data.json file and passes it as the data object to the template (it uses the file name to name the object).