This problem is quite interesting from a theoretical point of view. How to structure a program to be less dependent on its name? Would it be possible to have

This problem is quite interesting from a theoretical point of view. How to structure a program to be less dependent on its name? Would it be possible to have a single source of truth for names? So that if you want to change a name, that's a single line commit. Problem is, if the name is dynamic we'll have to refer to the name using another name.