How to migrate from Eigen?

[polortiz4]

I'm maintaining a library that used pybind11/eigen.h. It appears this header is not in nanobind, but there is the eigen directory. How do we port binding code that relied on eigen.h to nanobind?
In particular, this library used const Eigen::Matrix4f&

[wjakob]

Please take a look at the documentation on readthedocs.