Finding the build settings on disk

It's sometimes helpful, or just plain interesting, to locate the build settings on our hard drive. In Xcode 8, they are located in your project's project file; right-click and select Show Package Contents, then open the project.pbxproj file with any text editor (or Xcode itself).

Reading through this file is an educational experience, but editing it directly, while possible, should be approached with caution. The Build Settings tab won't let you really stuff things up, but your text editor most certainly will.

Now you can ignore that advice and start hacking it. Make a copy first, though, eh?