Last year Lightroom’s lead engineer, Troy Gaul(@tgaul) presented at the C4 Mac Developer conference in Chicago. Over the course of the hour long presentation Troy provided a background on the project, dove into the details of Lightroom’s technology platform, provided a demonstration of the development environment, discussed the plug-in APIs and explained Lightroom’s path to 64-bit. The presentation is clearly targeted at developers but if you ever wanted to peek behind the curtain it’s a great opportunity. The presentation is available here: http://www.viddler.com/explore/rentzsch/videos/37