In the world of Ubuntu and many of it’s derivatives, Haguichi has been providing an application indicator ever since version 1.0.7. These type of indicators are unfortunately not supported in GNOME Shell (at least not without some help). Therefore, I’m hereby introducing a dedicated Haguichi Indicator extension for GNOME Shell.
The extension is managed on GitHub. So get your ass over there if you want to report issues (bugs or feature requests) or even create your own fork!