I’ve read the Apple docs and looked around and can’t find definitive sources on what the preferred method is and how to do it.

Do we use modules? If so, how?

I understand that a .pch is now a “bad idea”. OK. What do we do instead? Why?

Is it good practice to create one constants.h/m? Or is that just another way of masking a global (which is bad)?

It does make everything easy to find.

Should we create one .h/.m file with multiple constants classes within?

I can easily go back to using a .pch, but a clear path forward to the current year’s practice would be nice.

Thanks in advance.

- Alex Zavatone