Phooey is a library for functional user intefaces. It's currently built on wxHaskell, but could probably be tweaked to run on top of other imperative UI libraries. For a fuller description and link to documentation, please see the Haskell wiki page: http://haskell.org/haskellwiki/phooey You can configure, build, and install all in the usual way with Cabal commands. runhaskell Setup.lhs configure runhaskell Setup.lhs build runhaskell Setup.lhs install See src/Examples.hs for examples. The dependencies are recorded in phooey.cabal. Besides base, you'll need "mtl", "arrows" and the wxHaskell packages "wx" and "wxcore". I've tested Phooey with wxHaskell built on wxWidgets-2.4.2 and on wxWidgets-2.6.3. Both work, but wxWidgets-2.4.2 is much friendlier with ghci, as it lets you run more than one wxHaskell app (Phooey app) per ghci session. With wxWidgets-2.6.3, the ghci process will crash if you try to run two GUIs. (True also for ghc-compiled code, but rarely problematic.) Since there is no known fix for for this crashing problem, I recommend wxWidgets-2.4.2. If you find that Phooey doesn't work with some version of base, mtl, arrows, wx, or wxcore, please let me know, and I'll update phooey.cabal accordingly.