How to build the Quicksilver trunk

For those of you that like living on the bleeding edge, here are the required steps to get a working Quicksilver from trunk :

• Get the source from trunk as usual (see checkout instructions)
• Edit Configuration/Developer.xcconfig, and set QS_SOURCE_ROOT to the directory you've checked the source to.
• Relaunch Xcode. It seems to have issue refreshing its build settings when they are not changed from the Build Settings.
• Hack away !