I think we should add an example of how we use private repositories from [packagist.com]( https://packagist.com/) and configure [auth](https://getcomposer.org/doc/articles/authentication-for-private-packages.md#http-basic) from env, like for example with [nova](https://nova.laravel.com/docs/3.0/installation.html#installing-nova-via-composer).
I think we should add an example of how we use private repositories from packagist.com and configure auth from env, like for example with nova.