on` is taken from the `test` folder of [gren-lang/core](https://github.com/gren-lang/core). As you can see, `gren-lang/core` is here defined as local dependency where the package is defined to reside in the parent folder.\\n\\nLocal dependencies has several limitations. The compiler will refuse to compile dependencies which themselves have local dependencies, and `gren package validate` will fail if a local dependency is defined./a\\nGren will also refuse to compile local dependencies which contain kernel c