Project layout and import

I have been using the constellation package for my developer tools and all the collections are there (even though I’m not subscribing to them) for all the templates. I’ve been including all of my templates in a single include, but I’m not sure if that’s the best way of doing it. And I read that the client and server folders determine what gets loaded where, but I currently only have a few files in the client folder while the rest are in an import folder (as suggested in a tutorial).