We made a previous version of the software in collaboration with Richards Heuer that you can get for free from PARC: http://www2.parc.com/istl/projects/ach/ach

We made a previous version of the software in collaboration with Richards Heuer that you can get for free from PARC: http://www2.parc.com/istl/projects/ach/ach.html http://www2.parc.com/istl/projects/ach/ach.html The setup is a lot easier with that version if you just want to try it out. It is just a little java program. Unfortunately, I don't think it is open source.