prefnerd (rubygems):      Are you an OS X prefnerd? Do you keep a base set of OS X preferences in     version control to make it easier to set up new machines? Do you want to     know which items are being changed, and to what values, whenever you alter a     setting on OS X? The prefnerd gem contains a simple executable that watches     the defaults database for changes and prints them to your terminal.   
Keywords: macos