What is the point ?
I suppose you don't want nib either ?
Question: is it IOS or OSX app ?
Just get an initial empty viewController as entry point and do all the rest programmatically. You will not have any storyboard, any nib. That's a lot of hassle to manage, but if that's your choice, you can do it.
What is it you do not know how to do ?
It's an Desktop app for OS10. To say with other words, I need my code editor just like it was 30 Years ago with no click fields. With youtube I understood that the storyboard can be removed but I could not follow this home video.
I think you are missing something important. You speak of a time without object oriented design, total procedural. I agree, that made it easier to have a global view on code, but that largely over.
So, look at details here
and tell if there is something you don't understand.
Note: it is OS X (X, not 10)