Simply add to your spork app through composer!
composer require spork/development
And register the Service Provider in your Spork App's config/app.php file. That will automatically add the Development entry to the menu.
If you're trying to use this outside of spork, you'll want the following in your EventServiceProvider
PublishGitInformationRequested::class => [
SendGitInformationToChannel::class
],
RedeployRequested::class => [
DeleteDevelopmentFiles::class,
CopyTemplateIfApplicableListener::class,
],