Chassis has a system of add-ons, just like WordPress’ plugins. Extensions can install additional software inside your Chassis box, configure WordPress for certain tasks, or set up additional web services to match your production environment.
Learn how to install extensions.
Replace wp-cron with Cavalcade, a horizontally scalable jobs system.
Install and activate common debugging plugins.
Install the fish shell.
Add ImageMagick to PHP.
Intercept outgoing mail and view it with a web interface.
Install memcache and add it to PHP (uses PECL memcache).
Install a local copy of Photon to serve images.
Install and configure PHPUnit, including WordPress core unit tests.
Install Xdebug to profile your PHP.
Install xhprof to profile your PHP, and view profiles through xhgui.