Please contact us with following contacts:

Email: dev@xoopsengine.org
Pi Engine Team: https://github.com/pi-engine/pi/wiki/Pi-Team
Pi Engine Website: https://www.pi-engine.org
Pi Engine Github: https://github.com/pi-engine
Pi Engine Code: https://github.com/pi-engine/pi
Pi Engine Docs: https://github.com/pi-engine/pi/wiki
Pi Engine Tickets: https://github.com/pi-engine/pi/issues
Pi Engine Google+: https://plus.google.com/communities/113415243547871753745

Pi demo websites:
Pi Dialogue: https://pialog.org; https://pialogue.org
Pi Demo: https://pi-demo.org
Xoops/Pi: https://demo.xoopsengine.org