OS X uses the library folder "Application Support" as a place for application specific data files, which not will break application if removed, such as config and log files. Apples users are tamed to remove application specific "Application Support" folder to reset application configuration / templates files etc and we should go the same route. This means that we should move probably everything stored in ~/.tlclient to ~/Library/Application Support/... The same goes for system wide configuration which lives in Bug 5659. Reference: https://developer.apple.com/library/mac/documentation/General/Conceptual/MOSXAppProgrammingGuide/AppRuntime/AppRuntime.html