Django’s built-in admin interface provides the way to map a “site” (hostname or domain) to any node in the wagtail tree, using that node as the site’s root. See Theory.
Access this by going to
/django-admin/ and then “Home › Wagtailcore › Sites.” To try out a development site, add a single site with the hostname
localhost at port
8000 and map it to one of the pieces of content you have created.
Wagtail’s developers plan to move the site settings into the Wagtail admin interface.