Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.
PrestaShop is a freemium, open-source ecommerce solution, written in the PHP programming language with support for the MySQL database management system.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.