I'm not completely sure it's his code. In his comments, he says it is for "those who are interested in trying something like this," and the readmes of most of the repos thank Tavis Rudd for inspiration, which would be a little strange if he wrote them. It might be based on his system, though, since he said he had privately sent some people his code. I haven't looked into it too much, though.

You can find my setup on GitHub fairly easily right now (my screenname's the same), but at the moment a good portion of the code is embarrassingly terrible. Making voice commands to code while using those voice commands to code is predictably awkward. Besides, I want to write some documentation on how to get it working and stuff.