Ah, that is also tonesto’s code and it’s also no longer being maintained:
I personally wouldn’t install it at this point and look for an alternative solution (same reason as previous). BUT be advised that if you install it manually (instructions are at the top of that thread) and get it to work it will also stop working when ST retires the Groovy API. Considering the ST installer and this solution both have about the same difficulty to install, I wouldn’t install a tool to install a smartapp - just install the smartapp but be ACTIVELY looking for the next way to integrate HomeKit.
@JDRoberts I don’t follow HomeKit - what’s on the horizon for the state of the art in connecting ST to HomeKit?