ISLAMABAD: On a scorching afternoon earlier this month in Islamabad, food delivery rider Hamza Ali pulled his motorbike beneath the shade of a tree after collecting an order from a restaurant. He opened the insulated delivery bag strapped behind him, took out a bottle of water, splashed some across his face and drank quietly before heading off to the next customer. At first glance, the scene appears routine in Pakistan’s growing gig economy, where thousands of riders weave through traffic every day delivering meals ordered through mobile apps.