Somewhat tangential, but I have been pushed, due to certain laptop problems, into 'living on the terminal'. However I couldn't bring myself to become fluent in Vim or Emacs as I felt my time to return to Sublime or Atom would come again. I in fact ended up configuring Vim to behave exactly like a 'conventional' editor - therefore no Normal Mode, unless for panes that require it like NERDTree. From this experience there are 2 things I would like more people to know;

1. Vim is way, way, way more than its modal keybinding paradigm, it has some 15,000 plugins - significantly more than any other editor I know of.

2. Neovim has much better key chord (ie, key combination) support. The only thing it is yet to support is case sensitive combinations involving CTRL - actually that's still a pretty significant shortcoming.

So it is indeed very possible to live in the terminal as a developer. I wonder if I even need a window manager, the only 2 GUI apps I now use are Alacritty (GPU-based terminal written in Rust) and Chromium.