.dotfiles/profiles/common/nixos/interceptiontools.nix

{ pkgs, ... }:
{
  # Make CAPS work as a dual function ESC/CTRL key
  services.interception-tools = {
    enable = true;
    udevmonConfig =
      let
        dualFunctionKeysConfig = builtins.toFile "dual-function-keys.yaml" ''
          TIMING:
            TAP_MILLISEC: 200
            DOUBLE_TAP_MILLISEC: 0

          MAPPINGS:
            - KEY: KEY_CAPSLOCK
              TAP: KEY_ESC
              HOLD: KEY_LEFTCTRL
        '';
      in
      ''
        - JOB: |
            ${pkgs.interception-tools}/bin/intercept -g $DEVNODE \
              | ${pkgs.interception-tools-plugins.dual-function-keys}/bin/dual-function-keys -c ${dualFunctionKeysConfig} \
              | ${pkgs.interception-tools}/bin/uinput -d $DEVNODE
          DEVICE:
            EVENTS:
              EV_KEY: [KEY_CAPSLOCK]
      '';
  };
}