Tessel JS to eLua Conversion

[drasko]

Hi all,
I have seen here http://www.slideshare.net/TechnicalMachine/tessel-the-end-of-web-development-as-we-know-it (slides 36 and 37) that Tessel board is fed g-zipped Lua file produced from Javascript file or Lua bytecode produced from Javascript.

Does anybody know how this conversion (JS -> Lua) is obtained? Is that something they wrote themselves, or maybe some existing Node.js module (or similar) can produce this?

Best regards,
Drasko