How to download Starter site from Site Library

How can I download a Starter Site from the Site Library?

For security reasons, wordpress config is set with WP_HTTP_BLOCK_EXTERNAL. Moreover, our firewall blocks the web server from being able to initiate requests. To install plugins and themes, we do this manually with scp and ssh.

define( 'WP_HTTP_BLOCK_EXTERNAL', true );

It’s trivial to download .zip files of plugins and themes from wordpress.org, but I can’t for the life of me figure out how to download Starter Sites from the GeneratePress website’s “Site Library” section. I can preview it, but where the heck is the download button!?!

Where can I download a Starter Site (with wget or curl) from the GeneratePress Site Library?

The page I need help with: [log in to see the link]