HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Matter.js is a 2D physics engine for the web. It provides JavaScript-based tools for simulating rigid body physics in 2D environments.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Paper.js is an open-source, vector graphics scripting framework, which offers a powerful Scene Graph and extensive functionality to create and manipulate graphic items using layers, gradients, blending, and other advanced features