bootstrap.php

<?php
require_once __DIR__ . '/vendor/autoload.php';
$configuration = new Bolt\Configuration\Composer(__DIR__);
$configuration->setPath('cache',    'cache');
$configuration->setPath('config',   'app/config');
$configuration->setPath('database', 'app/database');
$configuration->setPath('files',    'content/files');
$configuration->setPath('web',      'content');
$app = new Bolt\Application(array('resources'=>$configuration));

index.php

<?php
require_once __DIR__ . '/../bootstrap.php';
$app->initialize();
$app->run();