I've authored the following software projects:
Abba: A better build architecture is build-system framework written in Haskell that is designed to be a drop-in replacement for make. Unlike other make-like build systems which try to improve upon the design of make, Abba tries to be as close to make in design and purpose as possible while adhering strongly to the KISS ("keep it simple, stupid!") design principal.
FoRGE is functional-reactive game "engine", or framework, written in Haskell. Unlike traditional game engines that tie the game logic to a particular rendering framework, FoRGE provides only a self-contained logic module that makes no assumptions about how you display the output.