Currently very basic gnome-shell launches on my laptop. Quite some
services won't start yet, most notable is gnome-control-center.
GTK3 apps still don't have theming applied and for example launching
chromium results in horrible red windows.
Gnome doesn't work at least since I started using NixOS half a year
ago, let's not give wrong impressions to newcomers. Packaging gnome3
is still something on horizon.