Hackers have already started to make Google Glass do a whole bunch of things that Google has forbidden the device to do. And thanks to a 24-year-old named Stephen Balaban, they may soon be able control the device even more.

Balaban has built “an alternative operating system that runs on Glass but is not controlled by Google,” he told NPR's Steve Henn.

Google is trying to walk a fine line between encouraging developers to write awesome apps for Glass and keeping people from getting too freaked out about the potential spying/creepiness/unwholesome factor. For instance, Google has banned porn apps. And, a couple of months ago, it banned facial recognition software.