title: Modifying the source code of a home brew package
body: <p>I installed a package with homebrew (qt). I'd like to modify the source code and rebuild the package. I can't seem to find the source code, though. <code>brew --cache</code> returns a directory that doesn't exist, and the code for qt isn't in /usr/local/Cellar. Am I missing something? Does homebrew remove the source code after the application is built?</p>