Use separate URL in ghost than configured location
I would like to have my ghost install hosted and available at content.example.com but I am using Ghost as a headless CMS so I want the configured ghost url to be www.example.com. The static site at www.example.com uses the Ghost API to populate itself with content.
On a VPS I would configure Nginx so that the install is available at content.example.com but then run
ghost config url https://www.example.com. The admin dashboard still works, but all references to the site content is correct.
Is this currently possible?