This sounds like a very promising tool. I'm really excited to hear all of the talk about extensibility. One thing that is conspicuously absent is any mention o

This sounds like a very promising tool. I'm really excited to hear all of the talk about extensibility. One thing that is conspicuously absent is any mention of it being open source. I can certainly appreciate that Github is for-profit, but I would love to have a clearer idea of how free / not-free this tool will be when it is publicly available.