The first thing Jason Coleman did when he finally decided to start Yarden, the urban gardening business he had dreamt about, was to drive 40 hours per week for Lyft, shuttling passengers between Oakland, Berkley, San Francisco, and Silicon Valley. The connections just rolled in. Coleman says he met a trade Fair Trade business manager who offered to help with certification, an investor from AngelList, a community manager at FundersClub, a food bank partner (this…