Running the `MixedDimensional` branch on BinderHub

I am looking to build a Dockerfile on top of the MixedDimensional branch to run Jupyter notebooks on Binder.

Does anyone have any experience building containers using custom Dockerfiles on BinderHub? For a standard fenics installation using conda, one can directly create a conda environment with fenics through a environment.yml config file.

For this case, I am guessing something as simple as

FROM ceciledc/fenics_mixed_dimensional:latest
ENV HOME=/tmp

should work, but unfortunately the built container is rendered unusable. Any pointers?