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Make sure you have X11 forwarding active (e.g. XQuartz is running if on a Mac). You can find additional informations about X11 forwarding at Using X11 Applications Remotely
Pick a port on your local machine that is empty using whatever methods you like (e.g. netstat). Generally, somewhere in the 50000 range is safe if you just want to guess. SSH to O2 with that port (to be mentioned as PORT):
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In the future, you'll should ensure that your ~/.Renviron file and R_LIBS_USER environment variable point to the correct R personal library before trying to open an R notebook in Jupyter.
Opening an Rshiny application with Jupyter
You may encounter an R package that deploys an Rshiny app that you can access; on your desktop, this is as easy as pasting the provided link into the browser. On O2, an extra step needs to be taken.
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