Drupal 8 will ship with lots of goodies and new api's. One of my favorites is the plugin api.
While porting Display Suite to Drupal 8 I used it a lot and it looked a bit scary when I started with it.
This session wil prevent you from those scary moments.
It will cover at least following topics:
1) When do you need to build a plugin system?
2) How do I start building one?
3) How can I alter plugins?
Easy to grasp examples will be provided.
Basic module development knowledge will be required to enjoy this session.
Slides available on slideshare: http://www.slideshare.net/BramGoffings/dev-daysszeged
Source files can be downloaded on the bottom right of this page