It's GNU Readline[0] or similar. It's all over the place, on Linux at least. Being GNU it defaults to emacs, but the vi support is also excellent. The first thing I type in any foreign bash is 'set -o vi'.

[0] - https://en.wikipedia.org/wiki/GNU_Readline

Nope. And I’m probably not a great person to write it. I’m hardly an Emacs power user. I had friends who would do everything in Emacs to the point where I would joke with them that Linux was just their Emacs boot loader. I keep lots of other apps and term windows open. My init.el file is pretty simple. I’m often aware of a vague capability that Emacs has, but I’ll brute-force my way through an editing task with keystrokes and some keyboard macros rather than add a new fancy library, at least until I’ve been forced to do the same thing a couple times per month. That said, I do remember trying to use Emacs on a 300 baud dial-up link. That was painful, though truthfully everything beyond ed would be painful at that speed.

I spent a day or so hacking around with kanata[0], which is a kernel level keyboard remapping tool, that lets you define[1] keyboard mapping layers in a similar way you might with QMK firmware. When I hit the control or meta/alt/option key, it activates a layer where Emacs editing keys are emulated using the GTK equivalents. For example, C-a and C-e are mapped to home/end, etc. I preserve my macOS CMD-not-control-key muscle memory this way too.

The only problem is, this is not the behavior I want in terminals or in GNU/Emacs itself. I wrote a small python daemon (managed by a systemd user service) which wakes up whenever the active window changes. Based on this info, I send a message to the TCP server that kanata (also managed by a systemd user service) provides for remote control to switch to the appropriate layer.

[0]: https://github.com/jtroo/kanata

[1]: https://gitlab.com/spudlyo/dotfiles/-/blob/master/kanata/.co...

I'm a die-hard vimmer. I use vim-motions everywhere - they permeate my editors/IDEs, browsers, terminal, I use them system wide (e.g. to change volume or control media or my WM). One day I woke up with the realization of the fundamental truth - Emacs simply vims better. Much better than even Neovim. I just had to master Vim and grok some Lisp to arrive to that conclusion.

People fighting Vim vs. Emacs are materially wrong - they focus on superficial (albeit substantial) angle, instead of considering the core ideas behind them. Vim's augmentation of modality is an incredible, beautiful, practical concept. Lisp - yet another grandest idea in all history of computer science. And these ideas are not overlapping. Lisp-powered vimming grants you genuinely joyful experience - surprisingly empowering and enormously liberating.

Emacs' Lisp interpreter is so capable - accurately simulating vim in it is not impossible, while pretty much every other editor/IDE has failed - not a single VSCode plugin, not Sublime, not IntelliJ with IdeaVim have ever fully implemented vim motions to the degree where it doesn't feel foreign, while Evil-mode in Emacs feels like a built-in feature. Until recently, bolting Lisp into Vim seemed impossible, today you can get a pseudo-Lisp engine with Fennel. Even though it unlikely ever feel like Emacs.

If you're sticking to one thing only due to some muscle memory, sure you're not a savage, you're just a bit ignorant.

NeoVim because it's fun!! So many plugins and colorschemes!

So customizable- these days Claude will just change it for you, no need to learn the APIs if you're just interested in the result. Yes you're AI-slopping your config, but the drawbacks to that are super low (it's a personal editor, not something I'm inflicting on others)

If emacs is not installed on a system, I use sed. In addition to not getting stuck inside it when you don't remember the magic exit incantation, you can immediately reuse the command on a different file. And it doesn't play sounds while you do it. Plus when you're typing the sed command, you can use emacs key bindings to move around!

Vi is fine. It's superior and to bare ed - The Standard Editor*, when you don't have anything else available. I made much of my living coding vi 7 years in -80's. And I still use vi, when emacs is not there or system has so little memory that emacs is too much. Which is usually with a embedded systems or some old Unix on single mode fixing unbootable system.

*) https://cs.wellesley.edu/~cs249/Resources/ed_is_the_standard...

You will be downvoted into oblivion.

For speaking the truth.

Vi-lets, engage!

That said, I'm kinda hoping somebody does create a "GNU deadline" project now. I'm curious to see what kind of project it would be.

I thought you were using emacs?

Unless I misunderstood your question, are you simply trying to use emacs bindings in all text areas of the browser like the URL bar, any text fields on webpages, being able to move to the beginning or the end of a line, backspace, etc., go to the next or previous line, all with emacs bindings? That has worked for decades on Mac and it works for me now in all browsers.