OverTheWire: Wargames : The wargames offered by the OverTheWire community can help you to learn and practice security concepts in the form of fun-filled games.
Astro : Astro is an all-in-one web framework for building fast, content-focused websites.
Pure : A set of small, responsive CSS modules that you can use in every web project.
LÖVE is a framework for making 2D games in the Lua programming language. LÖVE is totally free, and can be used in anything from friendly open-source hobby projects, to evil, closed-source commercial ones.