How to get live output from task?

[safeboot]

I am trying to get the output of the task which for testing purposes is this:

echo "Hello to a world."
sleep 3
ls -l
echo "Goodbye to a world."

My goal is to get the outputs of the commands and broadcast them so I can have a "live" terminal output on the frontend using Laravel Echo. However I am having issues at the moment, I have tried this:

DeployApp::make($app)->onOutput(function () {
    $this->info('Output received...');
})->dispatch();

...and even to get output using while loop and checking for success status but nothing seems to have worked.

Any ideas?