This task is about the Newsletter extension, and its requirements are:
- Create a new subpage at Special:Newsletter/id/subscribers which lists down all the usernames of subscribers to a given newsletter (read only for starters)
- The page should list out subscribers one line per row. You can take in this data from nl_subscribers table. I think there are existing functions which you can call to get the subscribers ( public function getSubscribersFromID( $id ) in https://github.com/wikimedia/mediawiki-extensions-Newsletter/blob/master/includes/NewsletterDb.php#L335 )
- This page should be viewable only for people with newsletter-manage rights
- There should be navigation links and subtitle links as well (you can copy this from existing code)
For a GCI student, this might look a bit huge task, but it would be really rewarding - and we would be happy to extend the deadline on considerable progress!