We have various books about growing mushrooms. That was a bit of a challenge as mushroom growers can be a bit closed shop. But, we have the information and we have the technology i.e. ponies and wheat straw.
There are two ponies and if we make them a field shelter they will start to stay there overnight and turn the wheat straw into the perfect medium for growing mushrooms. That means that there can be a mushroom share for the members and possibly some to sell as well.
There are plenty of old logs down in the ancient woodland that could be brought back and put in a Mushroom Area for growing them.
I'll put any interesting article information here:
Home Farmer Issue 116, November 2017 Parasol Mushrooms