As impressive as that is, it's even more impressive that the last commit in the project was in 2012.
This 'little' web project is more than three years old and still amazing considering how much web browsers and web technologies have moved forward in this time.
Not trying to downplay your point, but I think the fundamental technologies have more or less stayed the same during this time frame. I think what has changed has been the tools that help you better organize and work with those technologies.
This 'little' web project is more than three years old and still amazing considering how much web browsers and web technologies have moved forward in this time.