Notebook provides keyboard shortcuts also accessible and searchable from command palette. There is also ipymd to write notebook from your editor using markdown.

Notebook provides keyboard shortcuts also accessible and searchable from command palette. There is also ipymd to write notebook from your editor using markdown. Pycharm supports notebooks and maybe you can use IdeaVim? You can export notebook to .py file from file menu. For git, just don't save the output, which can be removed from cells menu. See ipywidgets repo for notebook examples without outputs.