For dependencies we can have git = <url> or path = <path> but we cannot combine the two, in the cases where a cargo package lives somewhere nested inside of a git repo, i.e. not in the root of the repo. It would be very powerful to be able to provide a relative path into a git repo.

Use case: A repo that is a client library containing bindings in more than one language, and the Rust binding is under the rust folder inside that repo.

The workaround today is to submodule the repo into your own repo, and use a relative path config. This levies the requirement of using git of course.