The title of the article is "No Code Editor"
No code needs to be written. It's all click & drag in Interface Builder.
True but you end up with an incredibly bare bones text editor (and I don't mean
Bare Bones). It really is just an NSTextField in a window. I have a feeling the OP has more than that in mind. Perhaps you could explain your requirements in a little more detail OP?
FWIW, I have a shareware app that I recently released. I had the core functionality working literally within a couple hours of starting design on it. That was 1.5
years ago and I released version 1.0 last week. These no-code tutorials are impressive examples of what Cocoa does for you, but they really don't get you anywhere near a full-featured, useful app that has anything to differentiate it from numerous other apps with the same function.