It looks like this framework goes back ~3 years. So, why would you consider it the 'flavor of the week'? Because someone posted it to HN? That doesn't seem to be much of a threshold. Also, it looks like this framework could be of use in other languages aside from javascript.
It was started in 2011, and can be used to target any language. It was first used to generate C++ and JS code in Chrome in early 2012. It is a Framework written in JS, not specifically a JS Framework.
