In this case, Trolling is used in the fishing sense:
Trolling is a method of fishing where one or more fishing lines, baited with lures or bait fish, are drawn through the water. This may
be behind a moving boat, or by slowly winding the line in when fishing
from a static position, or even sweeping the line from side-to-side,
e.g. when fishing from a jetty.
The original author is attempting to convey that they are trying to avoid going over all of the details of the entire framework, including details that are trivial to most people.
FYI, some people will also use Trawling in the same manner and context.