> What if you want to develop a _library_ of RCL code, with functions where you don’t know how they will be called? I don’t think that RCL programs should grow

> What if you want to develop a _library_ of RCL code, with functions where you don’t know how they will be called? I don’t think that RCL programs should grow so complex that this is needed, but maybe I am too naive or nearsighted about that, and it will happen anyway. This is definitely happening. A module system is essential for configuration languages. I worked with multiple in-house configuration languages and all of them end up needing that.