#### Adding a third-party library to Friendica
-Does your shiny new [Plugin](help/Plugins) need to rely on a third-party library not required by Friendica yet?
+Does your shiny new [Addon](help/Addons) need to rely on a third-party library not required by Friendica yet?
First of all, this library should be available on [Packagist](https://packagist.org) so that Composer knows how to fetch it directly just by mentioning its name in `composer.json`.
This file is the configuration of Friendica for Composer. It lists details about the Friendica project, but also a list of required dependencies and their target version.
````
$> COMPOSER_HOME=/var/tmp/composer sudo -u [web user] util/composer.phar [mode]
````
+
+## Related
+
+* [Class autoloading](help/autoloader)
+* [How To Move Classes to `src`](help/Developer-How-To-Move-Classes-to-src)