Mybinder tightly restricts connections – for understandable reasons. There is a prototype extension called nbnovnc which facilitates VNC over a websocket within Jupyter. I have an updated dockerfile which integrates and launches that, but found out nbnovnc is incompatible with current pip versions of various dependencies (and doesn’t seem to be actively maintained). I haven’t had a chance to dig in and try to fix this yet (might be possible to just pin to older versions, but some discussion on their issue tracker suggested it was not so simple).