Extensibility and Reuse go hand in hand. We hear about reusable apps in Django all the time. One of the fundamental ways an app is made reusable is by making it extensibile. In this talk you will hear of three ways Eldarion has been making their apps extensibile for greater reuse and/or wider adoption. Even if you are not the author of any Django apps (yet), these techniques are useful to know about when working on your own projects.