Danny Milosavljevic <dannym@scratchpost.org> writes:

> dbus is an object-oriented inter-process-communication mechanism.

Wow, awesome overview!  Thank you for taking the time to explain it.
I've always wondered how it was supposed to fit together.

> I wonder why it works with the GNOME desktop.  Does it really?

What is "it"?  What works with GNOME desktop, which you expect does not?

I use GNOME on GuixSD.  For what it's worth, after I've logged into my
GNOME session, if I open up a GNOME Terminal, run "dbus-monitor", and
then launch Evince (from the application search menu), I do see a flurry
of activity related to Evince, so I think it's connecting to the session
bus (dbus-monitor monitors the session bus by default, apparently).

Regarding the lack of a "back" button in Evince, I do see one, and it
does seem to work.  The button looks like a "<" symbol.

-- 
Chris