Hah, are you me?

> Alt/Capslock + IJKL is a universal way to get arrowkeys https://news.ycombinator.com/item?id=29162132

I have similar keys to yours, but U and O are left/right four times, and 8 and , are up/down four times. Could make it more, I just know that 3 is to small.

I also use ahk as my window manager, which is essential for working on a 4k 100% scale screen: https://www.autohotkey.com/board/topic/79338-simple-window-p...

I also also have a hotkey for nearly every program I use on a daily basis. Win 0-9 are used of course, but Caps+F1-F12 are also used, and I've recently added Insert+letter keys to my collection thanks to my new fancy QMK keyboard. My goal is to never alt tab again :)

I also also also have an emacs/whichkey kinda thing, which does exactly what you think:

    CapsLock & E::WhichKeyMenu()
    WhichKeyMenu() {
      CoordMode, Menu, Screen
      Menu, WhichKeyMenu, Add, &C Code, Code
      Menu, WhichKeyMenu, Add, &D Desktop, Desktop
      Menu, WhichKeyMenu, Show, % A_ScreenWidth/2, % A_ScreenHeight/2
      return
    
      Code:
        run, explorer.exe C:\code
      return
    
      Desktop:
        run, explorer.exe C:\Users\dharm\Desktop
      return
    
    }

This is, of course, extensible to any AHK command, not just running explorer. Also means I don't have to memorize every goddamn shortcut. Only weird thing is that I have to exit out of it with Alt. Escape doesn't work and I dunno why.

> I know that vim uses jkl; for the arrows.

No, it uses hjkl. But of course the spirit of Vim and Emacs is that you can customise these things.

Incidentally, I have quite a similar ‘Vim everywhere’ map, though I use CapsLock rather than Alt to change modes.

I have a movement layer on my keyboard that uses ijkl for arrows and pgup/dn, esc and enter when I hold my thumb on a thumb function key.

You should look into QMK and ZMK-based keyboards and you can set up all kinds of crazy stuff. Sounds like you'd like it.