linux VS xcape

Interception tools! https://gitlab.com/interception/linux/tools

With the official caps2esc plugin! https://gitlab.com/interception/linux/plugins/caps2esc

It's actually incredibly useful to have apps like window managers or apps that rely on manipulating user input like xcape read another apps data. In fact such are still possible just 10x as complicated as they now involve writing awful little programs in some combination of c and yaml instead of a dead simple single line shell invocation of a program.

See https://gitlab.com/interception/linux/tools

The fact that this can work at all seems to suggest that its just as possible for malicious code running as user to compromise your security and the only thing actually broken is useful apps.

After updating my system after a while, i found Interception-tools to not working . It fails on a dependency on libyaml-cpp.so.0.7

You can try to use https://gitlab.com/interception/linux/tools/-/tree/master

Having both is a game-changer. Depends on your OS. On Mac, I use Karabiner. Linux I used use caps2esc and on Windows I use a custom AutoHotKey.

Before that I had used interception tools for key rebindings, which relied on the udevmon service to intercept keypress events, and thus even works in a TTY terminal, not requiring a window manager. I use vim keybindings in Emacs and for that I found it useful to rebind ESC to CTRL if tapped, but it still acts as CTRL when held (now I have implemented that in my keyboard firmware).

In addition to using ctrl+a as prefix... some of us remap capslock to ctrl so then the two buttons are right next to each other and easy to press with one motion. (This then makes it possible to have that key be ctrl when pressed in combo with another key or esc when pressed on its own.)

i use both X and Wayland and i also have a lot of key switching going on. So to have a universal config that works under both protocols i have to go lower than the display server protocols. I looked around for such a thing and finally found the interception tool

Do you know about https://gitlab.com/interception/linux/plugins/caps2esc? It makes it ctrl when held in combo with another key or esc when pressed on its own w/o other key (I loved it before ergodox) and there are some related plugins there for other keyboard customizations as well.

Don't know about i3, but you can achieve this in Linux/X11 using for example xcape: https://github.com/alols/xcape

I guess that xcape is what you're looking for.

You can use xcape (I assume xorg only; https://github.com/alols/xcape) to set any key including super/meta to trigger a custom keyboard shortcut on release.

Caps Lock is both Control and Escape depending on whether you hold or tap it. I use xcape.

All you need is dual mode modifiers - remap your spacebar to act as Ctrl when pressed and generate space symbol when released. You can make it with xcape on linux and with dual-key-remap on windows. It is also something for macos, but I never used it.

I have the same setup on linux. Using xcape and xmodmap together.