We use a submodule in https://github.com/uber/h3-py https://github.com/uber/h3-py to wrap the core H3 library, which is written in C. Submodules seemed like a r

We use a submodule in https://github.com/uber/h3-py https://github.com/uber/h3-py to wrap the core H3 library, which is written in C. Submodules seemed like a reasonable way to handle the dependency, and, at least for this use case, the approach hasn't given me any problems.