If you are interested in learning exactly what is involved, I recommend you go to the "Looped" Facebook group. Pinned at the top of their page is a link which is a good place to start!
Dana Diabecare R is a modern pump with a bluetooth radio. This pump has been hacked by a group of developers who are working on AndroidAPS closed-loop DIY system (not supported or sanctioned by the company that makes the Dana R pump). Unfortunately, as far as I know, that pump is available only in Europe.
also maybe New Zealand?
Thanks Lorraine, I've asked to join the Facebook group, waiting on the request so as to get access to the link.