diff --git a/boot.php b/boot.php
new file mode 100644
index 0000000..f5c2de8
--- /dev/null
+++ b/boot.php
@@ -0,0 +1,16 @@
+<?php
+
+// Load configuration
+$config = new GitList\Config('config.ini');
+$config->set('git', 'repositories', rtrim($config->get('git', 'repositories'), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR);
+
+// Startup and configure Silex application
+$app = new GitList\Application($config, __DIR__);
+
+// Mount the controllers
+$app->mount('', new GitList\Controller\MainController());
+$app->mount('', new GitList\Controller\BlobController());
+$app->mount('', new GitList\Controller\CommitController());
+$app->mount('', new GitList\Controller\TreeController());
+
+return $app;
\ No newline at end of file
diff --git a/index.php b/index.php
index 1ae2e04..234ab84 100644
--- a/index.php
+++ b/index.php
@@ -6,18 +6,5 @@
  */
 
 require 'vendor/autoload.php';
-
-// Load configuration
-$config = new GitList\Config('config.ini');
-$config->set('git', 'repositories', rtrim($config->get('git', 'repositories'), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR);
-
-// Startup and configure Silex application
-$app = new GitList\Application($config, __DIR__);
-
-// Mount the controllers
-$app->mount('', new GitList\Controller\MainController());
-$app->mount('', new GitList\Controller\BlobController());
-$app->mount('', new GitList\Controller\CommitController());
-$app->mount('', new GitList\Controller\TreeController());
-
-$app->run();
+$app = require 'boot.php';
+$app->run();
\ No newline at end of file