Apologies for the plain-looking site. Zuluru and WordPress currently disagree about what version of some common files to use, leading to broken menus. To maximize Zuluru functionality in the interim, we've separated the two. Until we can get them to play well together again, you can get back to the main site here.
It is written in PHP, built on the CakePHP framework, and uses plugins from Anuj Sharma (CakePHP-App-Installer), Commerceguys (addressing, intl), Flavien Beninca (cakephp-cors), Friends of Cake (bootstrap-ui), Jad Bitar (Footprint), Jevon Wright (html2text), Jose Diaz-Gonzalez (cakephp-upload, php-dotenv), Joshua Gigg (libphonenumber-for-php), Mark Scherer (cakephp-ajax), Òscar Casajuana (twbs-cake-plugin) and Trent Richardson (cakephp-scheduler). Unit testing is done with Sebastian Bergmann's PHPUnit.
Zuluru is based in part on Leaguerunner, originally written by Dave O'Neill, with contributions from Mackenzie King (bug fixes), Tony Argentina (player rating system, ladder-based scheduling), Dan Cardamore, Greg Schmidt (registration system, Google Maps layout editor) and Richard Krueger (iCal integration).
Contributions to the Zuluru codebase have been made by Mateusz Bocian (user interface) and Rizwan Jiwan (unit testing).
Feature suggestions and other inspiration have come from sources too numerous to remember.