feat(home/services): add sketchybar status bar module for macOS

Add Home Manager module for sketchybar with clock, battery, volume,
and Wi-Fi items. Enable on mac-va-mbp-work, replacing nunc service.

homes/aarch64-darwin/evanreichard@mac-va-mbp-work/default.nix

@@ -41,7 +41,8 @@ in
     };
 
     services = {
-      nunc = enabled;
+      # nunc = enabled;
+      sketchybar = enabled;
     };
 
     security = {

modules/home/services/sketchybar/default.nix

@@ -0,0 +1,176 @@
+{ config
+, lib
+, pkgs
+, namespace
+, ...
+}:
+let
+  cfg = config.${namespace}.services.sketchybar;
+
+  colors = {
+    white = "0xddffffff";
+    white_dim = "0x99ffffff";
+    bg = "0x20000000";
+    transparent = "0x00000000";
+    green = "0xff8ceb34";
+    yellow = "0xffe8d44d";
+    red = "0xffed4f51";
+  };
+
+  sketchybarConfig = ''
+    #!/usr/bin/env bash
+
+    COLOR_BG="${colors.bg}"
+    COLOR_WHITE="${colors.white}"
+    COLOR_WHITE_DIM="${colors.white_dim}"
+    COLOR_GREEN="${colors.green}"
+    COLOR_YELLOW="${colors.yellow}"
+    COLOR_RED="${colors.red}"
+    COLOR_TRANSPARENT="${colors.transparent}"
+
+    FONT_FACE="SF Pro"
+    NERD_FONT="Symbols Nerd Font Mono:Regular:16.0"
+    PADDING=6
+
+    # Bar - transparent, top
+    sketchybar --bar \
+      height=36 \
+      position=top \
+      color=$COLOR_TRANSPARENT \
+      shadow=off \
+      sticky=on \
+      topmost=off \
+      padding_left=0 \
+      padding_right=12 \
+      y_offset=3
+
+    # Defaults
+    sketchybar --default \
+      icon.font="$NERD_FONT" \
+      icon.color=$COLOR_WHITE \
+      icon.padding_left=$PADDING \
+      icon.padding_right=2 \
+      label.font="$FONT_FACE:Medium:13.0" \
+      label.color=$COLOR_WHITE \
+      label.padding_left=2 \
+      label.padding_right=$PADDING \
+      background.color=$COLOR_BG \
+      background.corner_radius=6 \
+      background.height=32 \
+      background.padding_left=4 \
+      background.padding_right=4
+
+    # Right side items (rightmost → leftmost)
+
+    # Clock
+    sketchybar --add item clock right \
+      --set clock \
+        icon=󰃰 \
+        icon.color=$COLOR_WHITE_DIM \
+        update_freq=1 \
+        script="${pkgs.writeShellScript "sketchybar-clock" ''
+          sketchybar --set $NAME label="$(date '+%a %b %-d  %H:%M:%S')"
+        ''}"
+
+    # Battery
+    sketchybar --add item battery right \
+      --set battery \
+        update_freq=30 \
+        script="${pkgs.writeShellScript "sketchybar-battery" ''
+          PERCENTAGE="$(pmset -g batt | grep -Eo "\d+%" | head -1)"
+          CHARGING="$(pmset -g batt | grep -c "AC Power")"
+          PCT="''${PERCENTAGE//\%/}"
+
+          if [ "$CHARGING" -gt 0 ]; then
+            ICON="󰂄"
+            COLOR="${colors.green}"
+          elif [ "$PCT" -ge 80 ]; then
+            ICON="󰁹"
+            COLOR="${colors.green}"
+          elif [ "$PCT" -ge 60 ]; then
+            ICON="󰂀"
+            COLOR="${colors.green}"
+          elif [ "$PCT" -ge 40 ]; then
+            ICON="󰁾"
+            COLOR="${colors.yellow}"
+          elif [ "$PCT" -ge 20 ]; then
+            ICON="󰁼"
+            COLOR="${colors.yellow}"
+          else
+            ICON="󰁺"
+            COLOR="${colors.red}"
+          fi
+
+          sketchybar --set $NAME icon="$ICON" icon.color="$COLOR" label="$PERCENTAGE"
+        ''}" \
+      --subscribe battery power_source_change system_woke
+
+    # Volume
+    sketchybar --add item volume right \
+      --set volume \
+        script="${pkgs.writeShellScript "sketchybar-volume" ''
+          VOL="$(osascript -e 'output volume of (get volume settings)')"
+          MUTED="$(osascript -e 'output muted of (get volume settings)')"
+
+          if [ "$MUTED" = "true" ]; then
+            ICON="󰖁"
+          elif [ "$VOL" -ge 60 ]; then
+            ICON="󰕾"
+          elif [ "$VOL" -ge 30 ]; then
+            ICON="󰖀"
+          elif [ "$VOL" -gt 0 ]; then
+            ICON=""
+          else
+            ICON="󰖁"
+          fi
+
+          sketchybar --set $NAME icon="$ICON" label="''${VOL}%"
+        ''}" \
+      --subscribe volume volume_change
+
+    # Wi-Fi
+    sketchybar --add item wifi right \
+      --set wifi \
+        icon=󰖩 \
+        icon.color=$COLOR_WHITE_DIM \
+        update_freq=10 \
+        script="${pkgs.writeShellScript "sketchybar-wifi" ''
+          EN="$(networksetup -listallhardwareports | awk '/Wi-Fi|AirPort/{getline; print $NF}')"
+          if ipconfig getsummary "$EN" | grep -Fxq "  Active : FALSE"; then
+            sketchybar --set $NAME icon=󰖪 label="Off"
+          else
+            SSID="$(networksetup -listpreferredwirelessnetworks "$EN" | sed -n '2s/^\t//p')"
+            if [ -n "$SSID" ]; then
+              sketchybar --set $NAME icon=󰖩 label="$SSID"
+            else
+              sketchybar --set $NAME icon=󰖪 label="Off"
+            fi
+          fi
+        ''}"
+
+    sketchybar --update
+  '';
+in
+{
+  options.${namespace}.services.sketchybar = {
+    enable = lib.mkEnableOption "sketchybar status bar";
+  };
+
+  config = lib.mkIf cfg.enable {
+    assertions = [
+      {
+        assertion = pkgs.stdenv.isDarwin;
+        message = "reichard.services.sketchybar is only supported on macOS (Darwin).";
+      }
+    ];
+
+    programs.sketchybar = {
+      enable = true;
+      extraPackages = [
+        pkgs.sketchybar-app-font
+      ];
+      config = sketchybarConfig;
+      service.enable = true;
+    };
+  };
+}