Sharing a home with roommates has always been a strategy for lower-income tenants to rent in expensive cities, but now a nonprofit is matching up strangers on the verge of displacement to help them stay in San Francisco.  Chronicle reporter Kevin Fagan talked with two people who moved in together with the help of the HomeMatch program. He joins host Laura Wenus to explain how the city is using this tool to prevent homelessness. | Unlimited Chronicle access: sfchronicle.com/pod Got a tip, comment, question? Email us: [email protected] Learn more about your ad choices. Visit megaphone.fm/adchoices