There are many sites that emulate the Stack Exchange look and feel, but aren't actually part of the network.

One such site is ask.puppetlabs.com

To qualify as a duplicate, do both questions need to reside in the official Stack Exchange network?

For example, look at these questions.

https://ask.puppetlabs.com/question/4512/managing-packages/

https://superuser.com/questions/693219/puppet-packagemanagement