[albertoavila]

I was involved on a project which were actually two very similar applications.

What we did was create one gem for each specific special behavior of the app, were we declared some methods as extension points which the base app should call, in that scenario prepending methods would be useful, we could declare dummy empty methods to be overwritten later on by a module.

What we needed to do because of the lack of prepending modules was that each module implementation should implement all of the extensions points even when it was not needed, so, some times we had some dummy empty methods on one of the specific modules, i would have preferred to have those dummy methods on the main project itself.