clarification about Bundler.require about guides HOT 2 OPEN

There should only be one require 'bundler' anywhere in the gem, and that would be in the Rakefile, which is only used for developing the gem. In this case, anybody attempting to do any development work on the gem should have Bundler installed since without it they'll be unable to build the gem.

Does this answer your question?

from guides.

So if I understand, in your examples, activesupport and thor are not managed through Bundler at all (you don't call Bundler.setup :default before they are required)? In which case what is the advantage of bundle installing them?

Not sure I like the sound of requiring Bundler to build the gem. I guess I'm kind of left scratching my head whether the advantage of Bundler over plain old rubygems in this case (sandboxing the development gems) is really worth it.

from guides.