I dunno. Git did not leave me with the impression that Linus is really good at making user interfaces.
You mean like GNOME shell?
A month or two back I started glueing XCB and spidermonkey together. The thought of DOM-based window management crossed my mind but I never saw the point of it. It makes sense in HTML where elements are nested inside one another, but in X, windows are seldomly nested - unless the application was designed that way. The heirarchy would be rather flat in a window manager.
% git push
fatal: protocol error: expected sha/ref, got '
Yes, this is an actual "helpful" error message.