Using #Hem - Spine
http://spinejs.com/docs/hem
Hem is a dependency management tool for #JavaScript Web apps; you can think of it as Bundler for Web Apps, resolving all the dependencies and compiling your application up to be served to clients.
Hem is excellent for developing #Spine, and indeed any type of JavaScript application. It’ll manage your application’s #CoffeeScript, #JavaScript and #CSS, compiling them to disk upon deployment.