{
  config,
  lib,
  pkgs,
  namespace,
  ...
}:
let
  cfg = config.${namespace}.desktop.plasma;
in
{
  imports = [ ./options.nix ];

  config = lib.mkIf cfg.enable {
    home.packages =
      (with pkgs.kdePackages; [
        plasma-browser-integration
        kdeplasma-addons
      ])
      ++ [
        # Caffeine-like tray applet: inhibits screensaver and sleep on demand
        pkgs.caffeine-ng
      ];

    programs.plasma = {
      enable = true;

      workspace = {
        colorScheme = "BreezeDark";
        cursor = {
          theme = "breeze_cursors";
          size = 24;
        };
        iconTheme = "breeze-dark";
        theme = "breeze-dark";
        lookAndFeel = "org.kde.breezedark.desktop";
        # Explicitly set Breeze to prevent QT_STYLE_OVERRIDE=kvantum (set by
        # Stylix's qt6ct target) from being picked up by KWin/plasmashell, which
        # would cause a fatal "module kvantum is not installed" QML error and
        # leave the desktop blank.
        widgetStyle = "Breeze";
      };

      # input.mice and input.touchpads require device-specific vendorId/productId
      # identifiers — configure those per-host in the home config instead.

      kscreenlocker = {
        autoLock = true;
        timeout = 10;
      };

      kwin = {
        effects = {
          shakeCursor.enable = false;
        };
        nightLight = {
          enable = true;
          mode = "automatic";
          temperature = {
            day = 6500;
            night = 3500;
          };
        };
        virtualDesktops = {
          number = 4;
          rows = 1;
        };
      };

      panels = [
        {
          location = "bottom";
          floating = true;
          height = 44;
          widgets = [
            "org.kde.plasma.kickoff"
            "org.kde.plasma.icontasks"
            "org.kde.plasma.marginsseparator"
            "org.kde.plasma.systemtray"
            "org.kde.plasma.digitalclock"
          ];
        }
      ];

      shortcuts = {
        kwin = {
          "Switch to Desktop 1" = "Meta+1";
          "Switch to Desktop 2" = "Meta+2";
          "Switch to Desktop 3" = "Meta+3";
          "Switch to Desktop 4" = "Meta+4";
          "Window to Desktop 1" = "Meta+Shift+1";
          "Window to Desktop 2" = "Meta+Shift+2";
          "Window to Desktop 3" = "Meta+Shift+3";
          "Window to Desktop 4" = "Meta+Shift+4";
          "Toggle Overview" = "Meta+Tab";
        };
      };
    };
  };
}