We should agree to a *proven* standard, and so far, we can state the following: Most people who write Javascript code in Koombea have heard, or have used CoffeeScript. Standardizing the use of it for projects from now on, doesn't limit anyone to use or explore different tools, we're just looking to make the best of a standard without blinding ourselves of different options. The point here is to define a standard, not to prevent something else from being used. Therefore I think we should use CoffeeScript as our standard because: Its syntax is simple enough to be understood by most current ruby/front-end developers. The performance overhead implied by compiling CoffeeScript should only happen during deployments not on execution. And lastly it is already widespread and well supported.