That's a good question. I've built systems that boot into a command prompt, and booting into emacs wouldn't be too big a step away from that. But what always seems to happen is that after a while the nostalgia wears off and I remember why I like my Jupyter.

I guess it's the REPL-on-steroids nature of Jupyter that I like. Also, having inline matplotlib graphs is pretty killer.

If you haven't, check out org mode in emacs. It can also inline graphs easily. With ready to go bindings for Python, graphviz, gnuplot, and R. (C-c C-x C-v will show charts inline with default bindings.)

My favorite is grabbing logs with a shell block. Reshaping with elisp or Python, and then charting with gnuplot. All in one file with an iterative workflow.