{
  config,
  lib,
  pkgs,
  self,
  ...
}:

let
  cfg = config.modules.system.desktop.gnome;
in
{
  options.modules.system.desktop.gnome = {
    enable = lib.mkOption {
      default = false;
      example = true;
    };
  };

  config = lib.mkIf cfg.enable {
    services.xserver = {
      enable = true;
      displayManager.gdm.enable = true;
      desktopManager.gnome.enable = true;
    };

    services.flatpak.enable = true;
    services.fwupd.enable = true;

    programs.dconf.enable = true;
    dconf.settings = {
      "io/github/celluloid-player/celluloid" = {
        draggable-video-area-enable = true;
      };
      "org/gnome/Console" = {
        font-scale = 1.4;
        use-system-font = false;
        custom-font = "ComicShannsMono Nerd Font 10";
      };
      "org/gnome/desktop/interface" = {
        color-scheme = "prefer-dark";
        cursor-theme = "Adwaita";
        enable-hot-corners = false;
        font-name = "Cantarell 11";
        gtk-theme = "adw-gtk3-dark";
        icon-theme = "MoreWaita";
        monospace-font-name = "UbuntuMono Nerd Font 11";
        toolbar-style = "both-horiz";
      };
      "org/gnome/desktop/peripherals/touchpad" = {
        tap-to-click = true;
      };
      "org/gnome/desktop/sound" = {
        theme-name = "freedesktop";
      };
      "org/gnome/desktop/search-providers" = {
        disabled = [ "org.gnome.Epiphany.desktop" ];
      };
      "org/gnome/desktop/wm/keybindings" = {
        switch-group = [ "<Super>grave" ];
        switch-group-backward = [ "<Shift><Super>grave" ];
      };
      "org/gnome/desktop/wm/preferences" = {
        button-layout = "appmenu:close";
      };
      "org/gnome/gnome-session" = {
        auto-save-session = true;
      };
      "org/gnome/gnome-system-monitor" = {
        show-dependencies = true;
      };
      "org/gnome/mutter" = {
        center-new-windows = true;
        edge-tiling = true;
        experimental-features = [ "scale-monitor-framebuffer" ];
      };
      "org/gnome/settings-daemon/plugins/media-keys" = {
        volume-up = [
          "<Shift>F12"
          "XF86AudioRaiseVolume"
        ];
        volume-down = [
          "<Shift>F11"
          "XF86AudioLowerVolume"
        ];
      };
      "org/gnome/shell" = {
        disable-user-extensions = false;
        enabled-extensions = [
          "appindicatorsupport@rgcjonas.gmail.com"
          # "arcmenu@arcmenu.com"
          "blur-my-shell@aunetx"
          "burn-my-windows@schneegans.github.com"
          "clipboard-indicator@tudmotu.com"
          "CoverflowAltTab@palatis.blogspot.com"
          # "dash-to-panel@jderose9.github.com"
          # "desktop-cube@schneegans.github.com"
          # "EasyScreenCast@iacopodeenosee.gmail.com"
          "espresso@coadmunkee.github.com"
          "flypie@schneegans.github.com"
          # "forge@jmmaranan.com"
          "gsconnect@andyholmes.github.io"
          # "gSnap@micahosborne"
          "hidetopbar@mathieu.bidon.ca"
          "just-perfection-desktop@just-perfection"
          # "mediacontrols@cliffniff.github.com"
          # "mousefollowsfocus@matthes.biz"
          # "pano@elhan.io"
          # "paperwm@hedning:matrix.org"
          "pip-on-top@rafostar.github.com"
          # "search-light@icedman.github.com"
          # "smart-auto-move@khimaros.com"
          "space-bar@luchrioh"
          # "tiling-assistant@leleat-on-github"
          "tilingshell@ferrarodomenico.com"
          "Vitals@CoreCoding.com"
          "windowIsReady_Remover@nunofarruca@gmail.com"
          # "worksets@blipk.xyz"
          # "wsmatrix@martin.zurowietz.de"
        ];
        favorite-apps = [
          "firefox.desktop"
          "org.gnome.Nautilus.desktop"
        ];
      };
      "org/gnome/shell/extensions/blur-my-shell/panel" = {
        static-blur = true;
      };
      "org/gnome/shell/extensions/blur-my-shell/applications" = {
        blur = false;
      };
      "org/gnome/shell/extensions/burn-my-windows" = {
        fire-close-effect = false;
        glide-open-effect = true;
        glide-close-effect = true;
      };
      "org/gnome/shell/extensions/dash-to-panel" = {
        intellihide = true;
        panel-positions = ''
          {"0":"TOP"}
        '';
        trans-panel-opacity = 0.3;
        trans-use-custom-opacity = true;
        trans-use-dynamic-opacity = true;
      };
      "org/gnome/shell/extensions/espresso" = {
        enable-fullscreen = true;
        show-indicator = true;
        show-notifications = false;
        inhibit-apps = [
          "com.obsproject.Studio.desktop"
        ];
      };
      "org/gnome/shell/extensions/flypie" = {
        preview-on-right-side = true;
      };
      "org/gnome/shell/extensions/forge" = {
        window-gap-size = 8;
        window-gap-hidden-on-single = false;
      };
      "org/gnome/shell/extensions/hidetopbar" = {
        mouse-sensitive = true;
        mouse-sensitive-fullscreen-window = true;
        enable-active-window = false;
      };
      "org/gnome/shell/extensions/just-perfection" = {
        activities-button = false;
        window-demands-attention-focus = true;
        workspace-wrap-around = true;
      };
      "org/gnome/shell/extensions/paperwm" = {
        use-default-background = true;
      };
      "org/gnome/shell/extensions/pip-on-top" = {
        stick = true;
      };
      "org/gnome/shell/extensions/search-light" = {
        popup-at-cursor-monitor = true;
      };
      "org/gnome/shell/extensions/space-bar/behavior" = {
        enable-activate-workspace-shortcuts = true;
        show-empty-workspaces = true;
        smart-workspace-names = false;
      };
      "org/gnome/shell/extensions/tiling-assistant" = {
        screen-top-gap = 8;
        screen-right-gap = 8;
        screen-bottom-gap = 8;
        screen-left-gap = 8;
        window-gap = 8;
      };
      "org/gnome/shell/extensions/tilingshell" = {
        inner-gaps = 16;
        outer-gaps = 8;
        enable-blur-snap-assistant = true;
      };
      "org/gtk/settings/file-chooser" = {
        show-hidden = true;
        sort-directories-first = true;
      };
      "org/gtk/gtk4/settings/file-chooser" = {
        show-hidden = true;
        sort-directories-first = true;
      };
    };

    environment.sessionVariables = {
      QT_STYLE_OVERRIDE = lib.mkForce "kvantum";
      QT_WAYLAND_DECORATION = lib.mkForce "adwaita";
    };

    home.configFile = {
      "Kvantum/kvantum.kvconfig".text = lib.generators.toINI { } {
        General.theme = "KvLibadwaitaDark";
      };
      "Kvantum/KvLibadwaita".source = "${self.inputs.kvlibadwaita}/src/KvLibadwaita";
    };

    user.packages =
      with pkgs;
      [
        authenticator
        # bottles
        # bustle
        celluloid
        # d-spy
        # drawing
        # fragments
        dconf-editor
        ghex
        ghostty
        # gnome-builder
        gnome-decoder
        gnome-firmware
        gnome-frog
        # gnome-obfuscate
        gnome-podcasts
        identity
        # mission-center
        mousam
        newsflash
        # schemes
        shortwave
        sysprof
      ]
      ++ (
        if config.virtualisation.podman.enable then
          [
            pods
          ]
        else
          [ ]
      );

    environment.systemPackages = with pkgs.unstable; [
      adw-gtk3
      kdePackages.qtstyleplugin-kvantum
      libsForQt5.qtstyleplugin-kvantum
      morewaita-icon-theme
      nautilus-python
      qadwaitadecorations
      qadwaitadecorations-qt6

      ## Shell extensions
      gnomeExtensions.appindicator
      gnomeExtensions.arcmenu
      gnomeExtensions.blur-my-shell
      gnomeExtensions.burn-my-windows
      gnomeExtensions.clipboard-indicator
      gnomeExtensions.coverflow-alt-tab
      gnomeExtensions.dash-to-panel
      gnomeExtensions.desktop-cube
      gnomeExtensions.easyScreenCast
      gnomeExtensions.espresso
      gnomeExtensions.fly-pie
      gnomeExtensions.forge
      gnomeExtensions.gsconnect
      gnomeExtensions.gsnap
      gnomeExtensions.hide-top-bar
      gnomeExtensions.just-perfection
      gnomeExtensions.media-controls
      gnomeExtensions.mouse-follows-focus
      # gnomeExtensions.pano (disabled due to: https://github.com/NixOS/nixpkgs/issues/369438)
      gnomeExtensions.paperwm
      gnomeExtensions.pip-on-top
      gnomeExtensions.search-light
      gnomeExtensions.smart-auto-move
      gnomeExtensions.space-bar
      gnomeExtensions.tiling-assistant
      gnomeExtensions.tiling-shell
      gnomeExtensions.todotxt
      gnomeExtensions.vitals
      gnomeExtensions.window-is-ready-remover
      gnomeExtensions.worksets
      gnomeExtensions.workspace-matrix
    ];

    home.services.gpg-agent.pinentryPackage = pkgs.pinentry-gnome3;
  };
}