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In Fedora 19, GTK+ has been built with Wayland and X11 support, so all you need to try it is a Wayland compositor.

Weston, the reference Wayland compositor, is available in the weston package.

To install it

$ sudo yum install weston

To run weston as an X client.

$ weston &

“&” will place running process in background, so you can still use that terminal.

Then to launch some GTK Apps inside, you first need to set the “GDK_BACKEND” environment to “Wayland”.

$ GDK_BACKEND=wayland

And export it, so you can actually use it

$ export GDK_BACKEND

Then you can try run GTK Apps

$ nautilus

For using Clutter Wayland backend which is also enabled by default in Fedora 19 Clutter Package you can:

$ export GDK_BACKEND=wayland CLUTTER_BACKEND=wayland

Above instructions also work with Ubuntu GNOME 13.04 with GNOME 3 Team and GNOME 3 Team Staging PPAs

http://cdimage.ubuntu.com/ubuntu-gnome/daily-live/current/ (Ubuntu GNOME Daily Builds)

https://launchpad.net/~gnome3-team/+archive/gnome3 (GNOME 3 Team)

https://launchpad.net/~gnome3-team/+archive/gnome3-staging (GNOME 3 Team Staging)

As always, you can check more in GNOME Live!