There are multiple ways you can do this. Yes, a lot of if statements are messy. What we did and worked very well for use is to develop whole modules, until all

There are multiple ways you can do this. Yes, a lot of if statements are messy. What we did and worked very well for use is to develop whole modules, until all the features was ready, and only at the and we "wired in" the module, which meant a "application.register(new_module)" call or something like that. This need a very well organized and modular code base.