Hi,I need to cache some data in my System Extension somewhere, even if the main app is not running. (So I can't use XPC.)I tried writing into library directory:FileManager.default.urls(for: .libraryDirectory, in: .userDomainMask)Which didn't work. I tried also writing into UserDefaults, which also didn't work.Is System Extension allowed to write anywhere? How would I go about caching small piece of data between system restarts?Thank you!