KDE developer Alexander Mezin was looking at the Qt Wayland compositor code and rather than building yet another Wayland compositor decided to build something similar for X11. Mezin ended up building "qmlcompmgr", a compositing manager for X11 written in Qt Quick / QML.

While it's far from being production ready and doesn't appear to have any long-term plans, any Qt developers wishing to look over the code for curiosity sake this weekend can find it on GitHub.

This QML compositing manager has window show/hide animations, dims inactive windows, and shadows support. On the downside, the performance isn't up to scratch, it crashes from time to time, and has other early limitations.

Those wishing to learn more about this Qt compositing manager experiment for X11 can be found via Alex Mezin's blog.