created merge request !15 to address this issue
mentioned in merge request !15
I asked Peter Kalvera (ESMValTool speaker at the ECAS webinar) to add to the ECAS IS-ENES3 Github readme the necessary instructions to create the conda env with the ESMValTool to be seen as a kernel in the Jupyterhub. When he does it, we can copy-paste his nb here and include the instructions in the readme here. Not sure if that would be enough to close this issue