For a track to be successful, it is important to have a handful of people that will maintain the track. These people are (unsurprisingly) known as the track maintainers. The tasks of these maintainers can range from reviewing PRs to bug fixing to adding new exercises.
Having a couple of track maintainers is especially important once the track is launched, as students will be enrolling and working on the exercises.
The adding of maintainers is a manual task.
You can request a maintainer to be added by opening an issue and tagging @exercism/staff.