I see! That's pretty cool. I don't really use django, I basically just use app engine as a backend REST api for my backbone.js app. So, I check if the build directly exists when I'm first loading the app, and the template loads the minified version if it exists, and the unminified version if it doesn't exist. That way I can test the production version by running `grunt build` and refreshing the page. But I still get all the benefits of developing on the unminified version if I just delete the build directory and refresh the page.