Well gnome-software is obviously restricted to gnome,and it might be the only current gui option but I don't think the system is. The page states that you can i

Well gnome-software is obviously restricted to gnome,and it might be the only current gui option but I don't think the system is. The page states that you can interact using the D-bus api and that's not restricted to gnome: https://en.wikipedia.org/wiki/D-Bus https://en.wikipedia.org/wiki/D-Bus