Controlling a notebook live through a secondary program.

Hey there! This is most likely the incorrect place to ask this question but thought I'd give it a shot.

I'm trying to create a secondary program that can interact w/ a Jupyter notebook _live_.

Basically, I'm trying to write a program `alter.py` that can actually add cells to `my_notebook.ipynb`. _But the catch is I want it to update live._

So basically, if I have `my_notebook.ipynb` open on my browser and run `alter.py`, I should see a new cell added to the end of my notebook. I wouldn't need to refresh the page or anything like that.

Is this possible - if so how?

The issue mentions alter.py and my_notebook.ipynb but names no repository files, tests, or entry points. First determine whether live cell insertion from a secondary program is a supported feature and define the synchronization behavior; done would require an agreed implementation scope and acceptance criteria.

Written by the indexing model from the issue text.