The whole 'do an open source' project is a crock. I single-handedly wrote a large Javascript plug-in module for a well-known editor. It's used by hundreds of people around the world but all the folks employing 'front-end' programmers seem to bin my CV as my current fulltime job is 100% Python. It baffles me that they want someone who is both a CSS3/LESS/SASS design guru and understands closures/promises/OO/etc.