Notebook hosting and zmq updates

new to jupyter labs

thinking about ways to host a jupyter lab notebook. I can put together the code for the approach but the hosting issue is beyond me. Most of the time I write notebooks for my use only. ANY help would be appreciated.

THIS I can do ( I think)
I’m going to put together a notebook that uses formatted interprocess messages to update a matix/dataframe. So in one of the NB cells will be an ipm processor ( python) that listens on a port ( say 5556) converts the IPM into a dataframe/matrix update ( row,column,data) updates the data structure so multiple ( 3 ) users can examine the datastructure and use the data for their manipulations. The main data structure will be read only to the users.