That is a lovely story. He does come across as a genuinely good guy.
We needed just a couple insulin reservoirs for a Medtronic pump and he brought a bunch of them, and quite a few blood glucose strips (which can be ridiculously expensive), and gave us a little demonstration about a closed-loop "artificial pancreas" system based on open source software and relatively cheap hardware. I'd definitely never have heard about Tidepool or OpenAPS if it weren't for his visit.
I'm hoping diabetes (or worse) isn't in my future, but you never know. Doctors don't have as much time lately due to Covid either to spend time with me on it until next year. In the interim it's just pain management...
edit: I had a look. I guess those have more to do with insulin management than a wholistic pancreas... really interesting nonetheless! This is the kind of effort that amazes me with regard to what we're really capable of with technology. Well if any one else knows of anything of a wider scope...
Yes, Tidepool and OpenAPS are both generally focused on insulin management, so if you're looking for something that involves glucagon-like things I've got no idea.
Honestly, Scott Hanselman is the guy I'd ask.