Local & SafeLocal
Those two adapters aims to use local filesystem. The second one will encode in base64 the filename before storing/retrieving.
First, you will need to install the adapter:
composer require gaufrette/local-adapter
Example
<?php
use Gaufrette\Filesystem;
use Gaufrette\Adapter\Local as LocalAdapter;
$adapter = new LocalAdapter('/var/media', true, 0750);
$filesystem = new Filesystem($adapter);