HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Piwigo is an open-source photo management software designed for creating and managing online photo galleries.
YunoHost is a server operating system that is free and open-source, allowing users to host their own web applications, email services, and other online tools. It is based on Debian GNU/Linux.