The experiment started inside the laundry room of an apartment in Atlanta, Georgia, where the two college students created a nursery for 700 larvae of black soldier flies they bought on Amazon for $20. Sean Warner and Patrick Pittaluga weren’t raising the writhing bugs as pets. They were raising food for animals. Warner and Pittaluga, who are cousins and Georgia Tech graduates, eventually moved the larvae farm out of their apartment and founded Grubbly Farms,…