I've implemented the observer pattern in my project by adding an Event and a Listener and created an EventServiceProvider like so:

class EventServiceProvider extends ServiceProvider
{
    protected $listen = [
        WspNotificationsReceived::class => [ProcessWspNotifications::class]
    ];
    ...

which I registered in config/app.php like so:

    'providers' => [
        AppServiceProvider::class,
        EventServiceProvider::class
    ],

This should be working right?

Now the real question.

In Laravel you can queue your listeners implementing the Illuminate\Contracts\Queue\ShouldQueue contract and defining a queue property on the Listener class public string $queue = 'listeners' as described here.

Now, although the ShouldQueue contract is available in Laravel Zero, it seems to me that everything else queue related is missing, starting with artisan commands. Am I right? If so, is it something that could be added somehow?

Thanks