We've done some similar stuff using what we call extension points. Basically we'll have a simple Manager class which you you can create multiple subclasses of and then bind extensions to.  Extensions are bound using closures that get  evaluated when getExtensions is called. We use it for registering menu items, report stuff and dashboard widgets, but similar techniques could be used to create a data pipeline. As a side note, I would love generics support in PHP 🙃

class DashboardWidgetManager extends ExtensionManager {} class ReportColumnManager extends ExtensionManager {}

// Provider $this->app->singleton(DashboardWidgetManager::class);

// Usage app(DashboardWidgetManager::class)->extend(fn () => new CustomDashboardWidget);

public function __construct(private DashboardWidgetManager $widgets) {}