It's also apparently kind of a dupe* and the top comment in the previous discussion indicates they looked and there's seemingly nothing "open" about this initiative.
I mentioned diet and lifestyle because that's how I manage my otherwise insanely expensive and debilitating condition and did so that way even while homeless. If you are genuinely concerned about the health and finances of poor people, finding a way to educate people about diet and lifestyle strikes me as at least part and parcel if what you ought to be doing and as a generally superior approach. One reason medicine is highly regulated is because screwing it up with unsanitary practices can maim or kill people.
* https://news.ycombinator.com/item?id=27854041