Resending - somehow I was subscribed with wrong email:)
HI Alex,
It seems like that is a just a notebook extension - so yes, we can easily add that to the image(s) and enable it.
To try that, I'd recommend forking this repository and adding the install commands in the linked file below the location:
You can then build the image from the minimal-notebook/ folder with
s2i build --copy . centos/python-36-centos7 s2i-appmode-minimal-notebook
Then push it to your Nexus and create an image stream. Restart JupyterHub pod and you should see it in the list.
If all went well, you should see the appmode extension - try it out and let me know:)
I might be able to get to this next week - I am in Boston this week and in meetings most of the day(s)
Hope it helps,
Vašek