{ inputs, self, ... }: let
  optionName = "features.applications.gui.thunderbird.enable";
in {
  imports = [
    (inputs.helpers.mkStandardFeature.flakeModule "graphics" optionName "Thunderbird")
  ];

  flake.nixosModules.graphics = { pkgs, config, ... }: {
    imports = [ (inputs.helpers.mkStandardFeature.nixosModule { inherit config optionName; } {
      environment.systemPackages = [ pkgs.thunderbird ];
    }) ];
  };

  flake.homeModules.graphicsOptions = { lib, ... }: {
    options.features.applications.gui.thunderbird.autostart = lib.mkOption {
      type = lib.types.bool;
      description = "Whether to add thunderbird.desktop to `$XDG_CONFIG_HOME/autostart`.";
      default = false;
    };
  };

  flake.homeModules.graphics = { pkgs, config, lib, ... }: {
    imports = [ (inputs.helpers.mkStandardFeature.homeModule { inherit config optionName; } {
      home.packages = [ pkgs.thunderbird ];
      xdg.configFile."autostart/thunderbird.desktop" = lib.mkIf (config.features.applications.gui.thunderbird.autostart) {
        text = ''
          [Desktop Entry]
          Categories=Network;Chat;Email;Feed;GTK;News
          Comment=Read and write e-mails or RSS feeds, or manage tasks on calendars.
          Exec=${pkgs.thunderbird}/bin/thunderbird --name thunderbird %U
          GenericName=Email Client
          Icon=thunderbird
          MimeType=message/rfc822;x-scheme-handler/mailto;text/calendar;text/x-vcard
          Name=Thunderbird
          StartupNotify=true
          StartupWMClass=thunderbird
          Terminal=false
          Type=Application
          Version=1.5
        '';
        force = true;
      };
    }) ];
  };
}