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macbook: add wob OSD for keyboard backlight keys

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wob (Wayland OSD Bar) runs as a systemd user service listening on a FIFO.
Keyboard brightness keybindings now pipe the new brightness percentage to
the FIFO after each adjustment, showing a progress bar overlay.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
rope 2026-05-17 13:47:59 +01:00
parent b4be9a9339
commit 43c251b90d
2 changed files with 33 additions and 3 deletions
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22
hosts/FredOS-Macbook.nix
View file

@ -33,10 +33,30 @@
HandleLidSwitchExternalPower = "suspend";
};
home-manager.users.fred = { ... }: {
home-manager.users.fred = { pkgs, ... }: {
wayland.windowManager.hyprland.settings.monitor =
[ ",preferred,auto,auto" ];
# wob reads 0-100 integers from a FIFO and shows a progress bar overlay
systemd.user.services.wob = {
Unit = {
Description = "Wayland OSD Bar";
After = [ "graphical-session.target" ];
PartOf = [ "graphical-session.target" ];
};
Service = {
Type = "simple";
ExecStart = "${pkgs.writeShellScript "wob-start" ''
rm -f "%t/wob.fifo"
mkfifo "%t/wob.fifo"
tail -f "%t/wob.fifo" | ${pkgs.wob}/bin/wob
''}";
ExecStopPost = "${pkgs.coreutils}/bin/rm -f %t/wob.fifo";
Restart = "on-failure";
};
Install.WantedBy = [ "graphical-session.target" ];
};
systemd.user.services.kbd-backlight-init = {
Unit = {
Description = "Set keyboard backlight to 10% on login";

14
settings/hyprland.nix
View file

@ -313,8 +313,18 @@ in
", XF86MonBrightnessUp, exec, swayosd-client --brightness raise"
", XF86MonBrightnessDown, exec, swayosd-client --brightness lower"
] ++ lib.optionals isMacbook [
", XF86KbdBrightnessUp, exec, brightnessctl -d smc::kbd_backlight set +10%"
", XF86KbdBrightnessDown, exec, brightnessctl -d smc::kbd_backlight set 10%-"
", XF86KbdBrightnessUp, exec, ${pkgs.writeShellScript "kbd-bright-up" ''
${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight set +10%
brightness=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight get)
max=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight max)
echo $(( brightness * 100 / max )) > "$XDG_RUNTIME_DIR/wob.fifo"
''}"
", XF86KbdBrightnessDown, exec, ${pkgs.writeShellScript "kbd-bright-down" ''
${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight set 10%-
brightness=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight get)
max=$(${pkgs.brightnessctl}/bin/brightnessctl -d smc::kbd_backlight max)
echo $(( brightness * 100 / max )) > "$XDG_RUNTIME_DIR/wob.fifo"
''}"
];
bindl = [