> Things like mixing in a data file is incredibly useful and not something I would want to use a rebuild step for at all.

It’s not directly part of the const function, but rust has compiler built-ins to import files as values as compile time, which makes it easy to declare global static variables that contain that data.

This is different from being able to walk a directory and read random files.

https://doc.rust-lang.org/std/macro.include_str.html

https://doc.rust-lang.org/std/macro.include_bytes.html

> They share the same frontend so there is very little difference.

That’s excellent.