I'm shamelessly adding my own HNC here :) http://code.google.com/p/inv/ https://github.com/kayuri/HNC/wiki I'm moving to GitHub - so 2 repos. "C++ is an evil language used at early stages of HNC development", so it will go away. See also discussions on reddit (submitted not by me lol) http://www.reddit.com/r/haskell/comments/mldzq/hnspl_a_bette... and here on HN long time ago http://news.ycombinator.com/item?id=2116337 (submitted by me)