Not yet, but I'm planning to. For him there's some good reading, starting with OpenAPS. AndroidAPS is implementing the research from OpenAPS and the site has lots of papers and documentation to read.
https://openaps.org/
AndroidAPS and OpenAPS do not work with all the same hardware, So you choose your rig based on your CGM and Pump model.
If I'd be him, I'd start by trying to get my hands into Dexcom G5 system or if he doesn't have a good insurance, the Freestyle Libre has some unofficial bluetooth readers available that work with Xdrip. First you get your continuous glucose monitoring working and then start thinking about automating the insulin delivery.
These projects started because we're not waiting. The organization behind is called Nightscout and their website has information how to build the needed hardware:
http://www.nightscout.info/
Now the pump manufacturers are seriously planning to bring closed loop systems like I have here to the market. The only model right now that has some of the features is Medtronic 670g, but in comparison, if you know what you're doing, building an open source rig will give you much more control and features than the commercial offerings. This might change in a couple of years though.
