SCC - Trac

Streaming component combinators framework (a Haskell library) is a collection of streaming components and component combinators. As described on the website "The components operate on data streams, usually producing output before all input is known. "

This looks like an interesting library to explore in future.

GLFW - An OpenGL library

GLFW - An OpenGL library: "GLFW is a free, Open Source, multi-platform library for creating OpenGL contexts and managing input, including keyboard, mouse, joystick and time. It is intended to be simple to integrate into existing applications and does not lay claim to the main loop."