If only this would work in Safari. :/

I remember switching to Firefox for it and loving it. But Safari gives me like 3-4 extra hours on an M1.

When I'm using Safari I've found myself using Vimari: https://apps.apple.com/us/app/vimari/id1480933944?mt=12

It's also available on GitHub if you're not interested in the Mac App Store: https://github.com/televator-apps/vimari

It works pretty well, but I've strayed away from using Vim & Vim bindings for everything after getting into using Emacs on my Linux box at work.

evil mode!

https://github.com/emacs-evil/evil

Tridcatyl is the reason I keep coming back to firefox, I don't even think the level of customizability it offers is even possible on chromium browsers

Tridactyl's key feature is "native messaging".

A further alternative is https://github.com/brookhong/Surfingkeys. Its key feature is a javascript configuration - allowing you to bind arbitrary javascript to a key.

"Key feature", it is a great feature but it is "only" for editing with your editor of choice (vim,neovim,helix, etc.) right? Or am i missing something?

I think you've misunderstood, "native messaging" allows the tridactyl extension to interact with the filesystem and native applications: https://github.com/tridactyl/native_messenger

Oh okay i just installed native messenger today to use helix as my editor for textareas. Will look a bit more into it.