This will download com.niantic.lightship.maps-0.4.0.tgz to your machine.
When I click that button, it doesn’t download anything, but instead directs me to the github site. I’m not sure how to download this tarball. Can you advise?
The download method has changed recently, sorry for the confusion.
You can add Maps the same way you add ARDK 3 to projects now via git url.
Just go to Window → Package Manager, click the plus sign on the top left of the package manager window, and select the option to Add package from git URL. Paste the following URL into the box: https://github.com/niantic-lightship/maps-upm.git
If you don’t see the git URL option, you’ll have to install git which you can do so on their site https://git-scm.com/ you can also reference this Unity page for more information