Process Service Provider registers the Symfony Process builder as a service for the Herrera.io service container. Also included is a simplified process builder.
use Herrera\Service\Container;
use Herrera\Service\Process\ProcessServiceProvider;
$container = new Container();
$container->register(new ProcessServiceProvider());
$process = $container['process']('echo');
$process
->arg('Hello, ')
->arg('Guest!')
->output($process->stream(STDOUT))
->run();