> Categories can’t formally conform to protocols I wasn't aware of that limitation, so I tried it out just now only to be certain. Works fine for me. ¯\_(ツ)_

> Categories can’t formally conform to protocols I wasn't aware of that limitation, so I tried it out just now only to be certain. Works fine for me. ¯\_(ツ)_/¯ @interface UIViewBuilderSmalltalkViewController(storage) <MPWStorage> @end @implementation UIViewBuilderSmalltalkViewController(storage) @end Compiler correctly complained about the missing methods and Xcode kindly offered to add stubs for me: /Users/marcel/programming/Projects/ViewBuilder/UIViewBuilderMockup/UIViewBuilderSmalltalkViewController.m:121:17: Category 'copying' does not conform to protocol 'MPWStorage' /Users/marcel/programming/Projects/ViewBuilder/UIViewBuilderMockup/UIViewBuilderSmalltalkViewController.m:121:17: Add stubs for missing protocol requirements