In one of São Paulo’s largest favelas, winding alleys and the absence of formal addresses long kept postal workers and online shopping out. During the pandemic, residents launched their own solution: Favela Brasil Xpress, a community-run delivery service that now handles more than 1,600 packages a day. The project has spurred new jobs, drawn in Brazil’s postal service, and even inspired a Google mapping initiative to put the favela on the grid. The World’s Tibisay Zea reports from the tangled streets of Paraisópolis.