At PuppetConf, I had the pleasure of meeting Bren Briggs, who I knew from twitter and IRC, so I was pretty happy when he asked me if I wanted to work on a Minecraft module with him.
I recently used Travis CI to help me get all my puppet modules and my controlrepo ready for Puppet v4.
A fair while ago I wrote a
Deprecation Warnings From Puppet Resources
blog post and metaparameter for adding expiry information to your manifests -