Thanks for putting together this image - I have some questions

[lstillwe]

I have a couple of questions/issues:

1. Does anyone know if there is any kind of RTC capability for Jupyterlab currently available, open source or commercial?
2. When I tried out this image from docker hub, I cannot seem to open a notebook. When I try to create a Python3 notebook, it flashes on the screen and immediately closes. It creates a file I can see in the directory tree under /work. The only error I see is here:

[W 16:26:53.134 LabApp] 404 GET /lab/api/workspaces/lab?1558542413027 (172.17.0.1): Workspace 'lab' ('lab-a511') not found
[W 16:26:53.135 LabApp] Workspace 'lab' ('lab-a511') not found
[W 16:26:53.136 LabApp] 404 GET /lab/api/workspaces/lab?1558542413027 (172.17.0.1) 7.25ms referer=http://127.0.0.1:8888/lab
[I 16:27:18.990 LabApp] Creating new notebook in /work
[I 16:27:19.004 LabApp] Writing notebook-signing key to /home/jovyan/.local/share/jupyter/notebook_secret

[frankgerhardt]

There is https://cocalc.com/. I haven't tried it. I'd be interested in what people think about it.