It does render the all doc (at least for notebook) IIRC, but that an implementation choice. As long as there is a model somewhere it could only render what's vi

It does render the all doc (at least for notebook) IIRC, but that an implementation choice. As long as there is a model somewhere it could only render what's visible. Note that almost all the rendering is - for JupyterLab – client side, and that for scaling we know of Single JupyterHub deployments that have close to 5k users. Horizontal scaling of Hubs is improving, and we hope to have more robust solution soon.