diff --git a/config/local.php.dist b/config/local.php.dist
index 2195448..c4b7359 100644
--- a/config/local.php.dist
+++ b/config/local.php.dist
@@ -41,11 +41,11 @@ return array(
 
 	// For now, XCP servers/pool masters must be defined in this file.
 	'xcp' => array(
-		'pool 1' => array(
-			'url'      => 'https://xcp1.example.net',
-			'username' => 'username',
-			'password' => 'password'
-		),
+		//'pool 1' => array(
+		//	'url'      => 'https://xcp1.example.net',
+		//	'username' => 'username',
+		//	'password' => 'password'
+		//),
 	),
 );
 
diff --git a/lib/Application.php b/lib/Application.php
index 11361d7..7979c13 100644
--- a/lib/Application.php
+++ b/lib/Application.php
@@ -556,7 +556,7 @@ final class Application extends Base
 		//--------------------------------------
 
 		// Creates master sockets.
-		foreach ($config->get('listen') as $uri)
+		foreach ($config['listen'] as $uri)
 		{
 			$handle = self::_createServer($uri);
 			$loop->addRead($handle, array($this, 'handleServer'));
@@ -564,7 +564,7 @@ final class Application extends Base
 
 		//--------------------------------------
 
-		foreach ($config->get('xcp') as $_)
+		foreach ($config['xcp'] as $_)
 		{
 			$xcp = new XCP($loop, $_['url'], $_['username'], $_['password']);
 			$xcp->queue(
@@ -782,7 +782,7 @@ final class Application extends Base
 		));
 
 		$bytes = @file_put_contents(
-			$this->_di->get('config')->get('database.json'),
+			$this->_di->get('config')['database.json'],
 			$data
 		);
 		if ($bytes === false)
@@ -799,7 +799,7 @@ final class Application extends Base
 	 */
 	private function _loadDatabase()
 	{
-		$file = $this->_di->get('config')->get('database.json');
+		$file = $this->_di->get('config')['database.json'];
 		if (!file_exists($file))
 		{
 			trigger_error(
@@ -824,7 +824,7 @@ final class Application extends Base
 		}
 
 		$data = @file_get_contents(
-			$this->_di->get('config')->get('database.json')
+			$this->_di->get('config')['database.json']
 		);
 		if (($data === false)
 		    || (($data = json_decode($data, true)) === null))
diff --git a/lib/Config.php b/lib/Config.php
index cafe89c..7469452 100644
--- a/lib/Config.php
+++ b/lib/Config.php
@@ -25,7 +25,10 @@
 /**
  *
  */
-final class Config extends Base
+final class Config extends Base implements
+	ArrayAccess,
+	Countable,
+	IteratorAggregate
 {
 	/**
 	 *
@@ -76,6 +79,19 @@ final class Config extends Base
 		return $this->_resolve($entry);
 	}
 
+	/**
+	 *
+	 */
+	function merge($entries)
+	{
+		if ($entries instanceof self)
+		{
+			$entries = $entries->_entries;
+		}
+
+		$this->_entries = array_merge_recursive($this->_entries, $entries);
+	}
+
 	/**
 	 *
 	 *
@@ -119,6 +135,66 @@ final class Config extends Base
 		$entry = $value;
 	}
 
+	//--------------------------------------
+
+	/**
+	 *
+	 */
+	function offsetGet($offset)
+	{
+		return $this->get($offset);
+	}
+
+	/**
+	 *
+	 */
+	function offsetExists($offset)
+	{
+		return (isset($this->_entries[$offset])
+		        || array_key_exists($offset, $this->_entries));
+	}
+
+	/**
+	 *
+	 */
+	function offsetSet($offset, $value)
+	{
+		$this->set($offset, $value);
+	}
+
+	/**
+	 *
+	 */
+	function offsetUnset($index)
+	{
+		trigger_error(
+			get_class($this).'['.var_export($index, true).'] is not deletable',
+			E_USER_ERROR
+		);
+	}
+
+	//--------------------------------------
+
+	/**
+	 * @return integer
+	 */
+	function count()
+	{
+		return count($this->_entries);
+	}
+
+	//--------------------------------------
+
+	/**
+	 *
+	 */
+	function getIterator()
+	{
+		return \ArrayIterator($this->_entries);
+	}
+
+	//--------------------------------------
+
 	/**
 	 * @var array
 	 */
diff --git a/xo-server b/xo-server
index a6ca94b..c185056 100755
--- a/xo-server
+++ b/xo-server
@@ -32,23 +32,22 @@ function _bootstrap()
 
 	if (!isset($application))
 	{
-		// Variables definition.
-		$root_dir = defined('__DIR__')
-			? __DIR__
-			: dirname(__FILE__)
-			;
-
 		// Class autoloading is done by composer.
-		require($root_dir.'/vendor/autoload.php');
+		require(__DIR__.'/vendor/autoload.php');
 
 		// Reads configuration.
-		$config = new Config(array_merge_recursive(
-			require($root_dir.'/config/global.php'),
-			require($root_dir.'/config/local.php')
-		));
+		$config = new Config;
+		foreach (array('global', 'local') as $file)
+		{
+			$file = __DIR__.'/config/'.$file.'.php';
+			if (is_file($file))
+			{
+				$config->merge(require($file));
+			}
+		}
 
 		// Injects some variables.
-		$config->set('root_dir', $root_dir);
+		$config['root_dir'] = __DIR__;
 
 		// Dependency injector.
 		$di = new DI;