The main presentation works under Drupal.
The forum is powered by FluxBB.
The extensions management system is running PEM.
Our issue tracker runs upon Mantis.

The demo of course is propelled with Piwigo latest stable.

Graphics were kindly (so much) provided by Stripy, who also chartered the website and the default theme of Piwigo 2.0.

The infrastructure is freely provided by Typhon, so we thank them a lot.