Waza is the Japanese word for art and technique. Heroku's Waza (技) conference is a developer event celebrating the art of software development through technical sessions and unique happenings. This year's event was held at the SF Concourse Exhibition Center on Feb 28, 2013. Some of the event's speakers included Ruby founder Yukihiro "Matz" Matsumoto, Django co-creator Jacob Kaplan-Moss and blogger Michael Lopp (Rands). For more info visit waza.heroku.com/2013.