“Sometimes I’m like, ‘Wow, I birthed this thing out of my garage,’” Mr. Guerra said, laughing. “Look how many cool things came out of garages: Steve Jobs, the Ramones. In other places — for example, Mexico — man, you’re a legend if you can kit your house out and you have a little storefront on the side. That person is really respected.”In 2016, after eight years in the garage, Mr. Guerra opened his current location in a small 1960s-era shopping mall. The prep area is almost exactly the same size as his old garage; the dimensions make him feel most like himself, he said.Mr. Guerra and his wife separated three years ago, in part because of disagreements over his early hours and a punishing workload. (She is still the co-owner of Barrio Br …
