Still exploring the ideas that came when writing the tutorial.
lino.tutorials.t2 now works with
either urls (Lino on top; this is equivalent to not setting
ROOT_URLCONF at all)
or urls2 (Lino under /lino).
lino.tutorials.t2.urls3 shows how it is
theoretically possible to install both Django’s admin
and Lino in parallel.
But the details are left for those who are interested;
Basically you just need to uncomment the related lines below.
But this tutorial still gets an ImproperlyConfigured error
“Put ‘django.contrib.auth.context_processors.auth’ in
your TEMPLATE_CONTEXT_PROCESSORS setting in order to
use the admin application.”