As a sibling post points out, you are basically discovering what many people come to love about emacs. I've even taken to loving eshell because of its transparent integration with remote filesystems using TRAMP. Add in the ability to redirect output of a command to a new buffer that you can then treat like any other text file, and things can be a ton of fun.

Once you get even slightly addicted to this, take a peek at org-mode and find an environment that can already compete with jupyter in pretty much every way. All without a giant json blob backing it, so that reviewing your changes can stick within your current version control world.