Tue, 10/03/2023 - 05:01 Tech Insider Jakota Rivas, right, in front of her ADU in Napa, California. She received a $40,000 state grant. Ryan O'Connell, left, is founder of How to ADU, a ADU advocacy company. Eric Santucci for Ryan O'Connell. Tags Real Estate, ADU, tiny-homes, California, affordable-housing Source Three Californians got $40,000 to build ADUs in their backyards. They share how…