Buid your JupyterHub and user kernel

follow this procedure

Then if you wish to code with your own specific kernel, build it as a conda environment

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Create a user kernel for jupyterhub:

1. Navigate in your conda environment
2. conda create -n myconda python=3.7.5 ipykernel

3. Check your envs

   conda info -e

4. Upgrade your conda env as you like

   conda install python=3.8.5 # for instance

5. Inform jupyterhub of new potential kernel

   .conda/envs/myconda/bin/python -m ipykernel install --user --name 'chris-myconda' --display-name "Chris myconda Env"
   

6. Check that the new kernel is there

   jupyter kernelspec list

7. In case you wish to remove and dereference your kernel:

   jupyter kernelspec uninstall chris-myconda