routes.connect.php

<?php
 
Router::connect('/', array('controller' => 'pages', 'action' => 'display', 'home'));

Router::connect('/custom', array('controller' => 'wherever', 'action' => 'index'));
// ... Other routes

require CAKE . 'Config/routes.php';

routes.php

<?php
 
App::uses('ZumbaRoute', 'Routing/Route');
 
Router::defaultRouteClass('ZumbaRoute');
 
$routesFile = __DIR__ . '/routes.connect.php';
$routesHash = sha1_file($routesFile);
 
$cacheFile = TMP . '/routes-' . $routesHash . '.php';
if (file_exists($cacheFile)) {
	include $cacheFile;
} else {
	include $routesFile;
 
	// Prepare for cache
	foreach (Router::$routes as $i => $route) {
		$route->compile();
	}
 
	$tmpCacheFile = TMP . '/routes-' . uniqid('tmp-', true) . '.php';
	file_put_contents($tmpCacheFile, '<?php
		Router::$initialized = true;
		Router::$routes = ' . var_export(Router::$routes, true) . ';
	');
	rename($tmpCacheFile, $cacheFile);
}
 
Router::connectNamed(true);

ZumbaRoute.php

<?php
 
App::uses('CakeRoute', 'Routing/Route');
 
/**
 * Just a wrap of CakeRoute to support var_export
 */
class ZumbaRoute extends CakeRoute {
 
	public static function __set_state($fields) {
		$class = get_called_class();
		$obj = new $class('');
 
		foreach ($fields as $field => $value) {
			$obj->$field = $value;
		}
		return $obj;
	}
 
}