It's the successor to the (now defunct) webr experiment (https://github.com/thatdutchguy/webr).
This is a work in progress, and is still in its early stages. I hammered this out while attending LSRC V. I'm still figuring out this node.js thing and am not sure how I'm going to structure this yet. Stuff will change. Stuff will break.
npm install -g windtunnel
wt <path> [options]
wt jspec/ wt jspec/ --summarizer html wt jspec/awesome_spec.js --summarizer html
The HMTL summarizer has been tailored to work well with TextMate.