Rephrased:
There's a livecoding environment called Text (or Texture) written in Haskell (author: Alex Mclean/yaxu). It's not available on hackage, and it requires hand-installation, both of itself and of some dependencies. (A list of the dependencies can be found here: http://yaxu.org/text-update-and-source/).
What's the proper way to build/install it? Specifically, how does a person install and (importantly) configure each component, and in what order?