{
  self,
  inputs,
  ...
}: {
  perSystem = {
    pkgs,
    system,
    ...
  }: {
    packages.catppuccinGtkMochaMauve = pkgs.catppuccin-gtk.override {
      variant = "mocha";
      accents = ["mauve"];
      size = "standard";
      tweaks = ["rimless"];
    };
  };

  flake.nixosModules.gtkTheme = {
    config,
    pkgs,
    lib,
    ...
  }: let
    catppuccinGtk = pkgs.catppuccin-gtk.override {
      variant = "mocha";
      accents = ["mauve"];
      size = "standard";
      tweaks = ["rimless"];
    };

    gtkThemeName = "Catppuccin-Mocha-Standard-Mauve-Dark";

    gtkSettingsCommon = ''
      gtk-application-prefer-dark-theme = true
      gtk-theme-name = ${gtkThemeName}
      gtk-icon-theme-name = Catppuccin-Mocha-Mauve
      gtk-font-name = FiraMono Nerd Font 11
      gtk-cursor-theme-name = Bibata-Modern-Ice
      gtk-cursor-theme-size = 20
    '';
  in {
    fonts.packages = [pkgs.nerd-fonts.fira-mono];

    environment.systemPackages = with pkgs; [
      catppuccinGtk
      bibata-cursors
      catppuccin-icons
    ];

    environment.etc = {
      "gtk-3.0/settings.ini".source = pkgs.writeText "gtk3-settings.ini" ''
        [Settings]
        ${gtkSettingsCommon}
      '';

      "gtk-4.0/settings.ini".source = pkgs.writeText "gtk4-settings.ini" ''
        [Settings]
        ${gtkSettingsCommon}
      '';
    };

    environment.variables = {
      XCURSOR_THEME = "Bibata-Modern-Ice";
      XCURSOR_SIZE = "20";
    };

    programs.dconf.profiles.user.databases = [
      {
        lockAll = false;
        settings = {
          "org/gnome/desktop/interface" = {
            gtk-theme = gtkThemeName;
            icon-theme = "Catppuccin-Mocha-Mauve";
            cursor-theme = "Bibata-Modern-Ice";
            font-name = "FiraMono Nerd Font 11";
          };
        };
      }
    ];
  };
}