Weekly Digest
Mar 16 - Mar 22, 2026
5 articles that week
Performance as a Core Product Feature
Snapchat treats performance as a core product feature, not just a requirement. Their custom tracing system catches regressions that off-the-shelf tools completely miss.
Maestro at Scale: Architecting a Deterministic Mobile Test Platform
Emre Erkek from Getir reveals how they turned Maestro from a simple testing tool into a deterministic platform that runs thousands of tests daily. Most teams fail at E2E testing scale—here's the architecture that actually works.
Making AI Write Android Code Our Way: A Practical Guide to Agent Skills
Pierrick CAEN from Medium's Android team reveals how they turned AI coding assistants from generic code generators into team-specific experts. The secret? Teaching the AI their exact conventions through structured 'skills.'
Expo UI in SDK 55: Jetpack Compose now available for React Native apps
Kudo Chien, Nishan Bende, and Aleksander Mikucki from Expo just made it possible to use native SwiftUI and Jetpack Compose components directly in React Native apps. No JavaScript reimplementation required.
How to Make Your Mobile App Faster
Essam Fahmy from Deloitte reveals why 70% of users abandon slow apps—and shares the exact techniques that cut load times by up to 70%. If your mobile team treats performance as an afterthought, this breakdown will change how you build.