(This, incidentally, is why the current 'zero-config' marketing fad is such nonsense: it really means 'abdicate the responsibility for config'. Instead of a single place where you can view all the build config in a structured, coherent form, you have the exact same amount of config but scattered around your project in lots of annoying files that are harder to understand.)

This file that really does nothing but manage other project files is often called a “solution” in some environments.