nixos-system-config/modules/desktop/environments/kde.nix

{ pkgs, ... }:

{
  imports = [
    ../../system/fonts.nix
  ];

  environment.sessionVariables = {
    LIBVA_DRIVER_NAME = "nvidia";
    XDG_SESSION_TYPE = "wayland";
    GBM_BACKEND = "nvidia-drm";
    __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    NVD_BACKEND = "direct";
    MOZ_DISABLE_RDD_SANDBOX = 1;
    NIXOS_OZONE_WL = 1;
  };

  services.desktopManager.plasma6.enable = true;
  services.displayManager.sddm = {
    enable = true;
    wayland.enable = true;
  };

  environment.plasma6.excludePackages = with pkgs.kdePackages; [
    plasma-browser-integration
    khelpcenter
    krdp
  ];

  environment.systemPackages = with pkgs; [
    nvidia-vaapi-driver
  ];

  home-manager.users.hu = {
    dconf.settings = {
      "org/gnome/desktop/interface" = {
        color-scheme = "prefer-dark";
      };
    };

    gtk = {
      enable = true;
      theme = {
        name = "breeze";
        package = pkgs.kdePackages.breeze-gtk;
      };
    };

    programs.plasma = {
      enable = true;
      workspace = {
        lookAndFeel = "org.kde.breezedark.desktop";
        wallpaper = "/nix/config/assets/wallpapers/kde.png";
      };

      panels = [
        {
          location = "bottom";
          widgets = [
            {
              kickoff = {
                icon = "nix-snowflake-white";
              };
            }
            {
              iconTasks = {
                launchers = [
                  "applications:org.kde.dolphin.desktop"
                  "applications:org.kde.konsole.desktop"
                  "applications:org.mozilla.firefox.desktop"
                ];
              };
            }
            "org.kde.plasma.marginsseperator"
            {
              digialclock = {
                calendar.firstDayOfWeek = "monday";
                time.format = "24h";
              };
            }
            {
              systemTray.items = {
                shown = [
                  "org.kde.plasma.networkmanagement"
                  "org.kde.plasma.volume"
                ];
              };
            }
          ];
        }
      ];
    };
  };
}