The appmenu-gtk-module is a GTK Module that strips menus from all GTK
programs, converts to them MenuModel and send to them AppMenu
(sometimes called a global menu bar) of a desktop environment like
Plasma or Gnome. This module was originally used in Ubuntu's Unity
Desktop Environment, but it lives on as part of the Vala project.

WWW: https://gitlab.com/vala-panel-project/vala-panel-appmenu/-/tree/master/subprojects/appmenu-gtk-module