Solarpunk Farming

I suppose the closest think I know of in relation to an effort of DIY medicine is the Open Insulin Foundation. Actually, to my understanding it's more of a DIT (Do It Together) thing:

We’re working to develop the first practical, small-scale, community-centered model for insulin production to make insulin accessible to all. This model will ensure communities in need have local sources of safe, affordable, high-quality insulin, and that people living with diabetes and their communities own and govern the organizations that produce the medicine they depend on to survive.

From another point of view, I believe that herbalism is quite relevant to your question, in the sense that the vast majority of medicine through out time and all over the world, come from plants. I embarked on this journey 1-2 years back and it's like I started rediscovering the world around me.

One of he great things with herbalism is that it's easy to do your own tinctures and mixtures, and use them also to prevent stuff. For example this autumn I made a mix to boost my immune system and I didn't get sick all winter for the first time in years. Just to be clear, I use both western medicine and herbalism, and I am not against vaccines.

Btw this is herbalism@slrpnk.net