How to set globak keyboard shortcut remap? Like "Caps" -> "Meta + Space"

[linonetwo]

On MacOS and Windows11, I can remap Caps Lock (rarely used) to any other keyboard shortcuts, like map it to sequental two keys "Meta + Space".

And I will use "Meta + Space" to switch IME.

Can this be done in Cosmic rust-based desktop environment?

[dazu89]

I am also interested to know how key remap works in cosmic – the caps lock key is so conveniently reached with my stubby fingers!

[JosXa]

I have this in my NixOS config, maybe it'll hint you at what you need to do on your end (excerpt done by opencode):

Primary Method: xremap Service

The main way you remapped Caps Lock to Escape was through xremap (home-manager/desktop.nix:92-97):

home.file.".config/xremap/config.yml".text = ''
  modmap:
    - name: Global
      remap:
        CapsLock: Esc
'';

This is coupled with a systemd user service (home-manager/desktop.nix:169-180) that auto-starts xremap.

Desktop Environment XKB Configuration

You also configured keyboard remapping directly in desktop environments:

• COSMIC: XKB options in .config/cosmic/com.system76.CosmicComp/v1/xkb_config with caps:escape
• GNOME: dconf settings with xkb-options = ["caps:escape"]

[dazu89]

Regarding Cosmic and xremap, while global shortcuts ought to work (not tested) support for application specific shortcuts have not been implemented xremap/xremap#635.