> not possible to depend on only a part of a module in Rust though right
yesn't, you can use feature flags similar to `#if` in C
but it's also not really a needed feature as dead code elimination will prune out all code functions, types, etc. you don't use. Non of it will end up in the produced binary.
For example, you can't split up a module into foo.rs containing `Foo` and bar.rs containing `Bar`, both in module 'mymod' in such a way that you can `use mymod::Bar and foo.rs is never built/linked.
My point is the granularity of the package/mod encourages course-grained deps, which I argue is a problem.