Drupal Site-Builders sometimes have to download and install many modules until they finally find what they really need.
Now there's an online solution for this:
Recently, I had the opportunity to provide training on building Android apps at SandCamp in San Diego! I was excited to teach my first training class at a Drupal camp, because I like to teach, and I like Drupal. We built this app from scratch:
Throughout a development life-cycle code may move between various environments (e.g. Development -> Integration -> Staging -> Production), however we may not want every environment to have the exact same setup.