The situation can be a bit shakier with GUI programs. I like it when they offer an explicit way to export & import configuration (Since what's findable on disk

The situation can be a bit shakier with GUI programs. I like it when they offer an explicit way to export & import configuration (Since what's findable on disk just by searching is not always reliably portable IME). E.g. for Terminal.app on OS X, which I have configured fairly extensively, I manually export a .plist file and put that in my git repo for safe keeping.