Nbgitpuller and dockerspawner

Hi! I’ve been struggling for a long time now to get nbgitpuller to work with my jupyterhub environment. I’m using this setup: https://github.com/jupyterhub/jupyterhub-deploy-docker

Everything is working fine, except that I don’t get nbgitpuller to work. I installed it through the docker shell in the container, through the terminal in the user interface and through a RUN command in the singleuser Dockerfile. Still, I get 404 when opening a link generated with https://jupyterhub.github.io/nbgitpuller/link.html

Am I missing something? Where is the right place to install nbgitpuller? Any changes to the link structure with the dockerspawner setup? Any tips on debugging?

Thank you!