Nbdev with conda-only dependencies

I’m trying to use Nbdev to build a project using RDKit, a library that is available only through a Conda install. The lead developer on the project has made some comments about the lack of pypi install, but tl;dr for the foreseeable future the library will be available from Conda only.

This means that Nbdev CI will aways fail, since a necessary library can’t be installed during the build process. Is there a workaround for this?