(tested on Linux, Windows, and MacOS X)
Install the basic version first
cabal install
Try installing the graphical interface
cabal install ./geni-gui
You may run into some trouble with wxHaskell. Get in touch if that's the case.
I accept Darcs patches and GitHub pull requests.
The code style has evolved a lot. Sorry for the inconsistency. As of 2012-05-06, I'm trying to move to a published style guide so I can stop thinking about silly things like indentation, but the code will take a long time to catch up.
Please let us know if you are using GenI; we'd like to hear about your experiences, both positive and negative.