loadApp() builds the path to the requested app, and then loads it up by requiring the apps lead file.
Location: class.sodapop.php
public function loadApp() {
$appPath = "./apps/" .
$this->pageData['getApp'] .
"/" .
$this->pageData['getApp'] .
".php";
require_once $appPath;
$output = $appController->output($this);
return $output;
}