1. Clone the repo.
2. Run npm install in the root of the repo folder.
3. Run node index.js.

This will start a server on port 3000 on your system which can be accessed from https://localhost:3000 in your browser.

All the templates are available in the views/mixins directory. You can replace the template being used on the page by editing the file views/partials/products.pug.

1. product.pug - unoptimimzed images
2. product_ik.pug - unoptimized images, but with CDN and the right cache headers
3. product_optimized.pug - optimized images with the right format and commpression
4. product_resize.pug - optimized plus resized for a single screen size
5. product_responsive.pug - optimized, responsive images
6. product_lazyload.pug - optimized, responsive images with native lazyloading

To use a particular template, use the template name (i.e. product_lazyload) in the views/partials/products.pug