Comment by jonhohle

Cocoa was so good. I even liked old-school Interface Builder’s IoC. Now there are controls where it’s obvious drag and/or drop should be supported but it isn’t or simple things like opening a custom SwiftUI (né Preferences) settings window from legacy AppKit code is unsupported.

Unfortunately, Objective-C added modern language features too late. IB never used the term IoC or anything else devs coming from other ecosystems would understand. A lot of great stuff that NeXT built 30 years ago is still great today, but never had the notoriety of lesser frameworks and languages.