use jupyterhub-base
removes nodejs from the conda environment
node is already installed on the host
MODIFY
repo2docker/buildpacks/conda/environment.yml
repo2docker/buildpacks/conda/environment.yml
@@ -2,7 +2,7 @@ dependencies:
- python=3.7
- ipywidgets==7.4.2
- jupyterlab==0.35.4
- - jupyterhub=1.1.0
- nbconvert==5.4.1
- notebook==5.7.8
+ - jupyterhub-base==1.1.0
- nteract_on_jupyter==2.1.3

use jupyterhub-base

removes nodejs from the conda environment

node is already installed on the host