Field notes
What we learned building the last thing — architecture, delivery, and the decisions we'd make differently.
Mobile-App
From live GPS tracking and SOS safety tools to surge-zone controls and audit logs, here is every feature a tax...
Engineering
A complete, step-by-step guide to building an Uber-like ride-booking app: customer and driver apps, GPS tracki...
Engineering
Version one had a retry queue and lost 4.7% of delivery proofs. Version two made the phone the source of truth...
Design
Your users are not on a MacBook on office wifi. They are on a 3 GB Android, at 400 kbps, in bright sunlight, w...