Weekly Digest
Nov 3 - Nov 9, 2025
7 articles that week
I achieved 0% ANR in my Android app. Spilling beans on how I did it - part 1.
After a year of relentless optimization, one Android dev achieved the impossible: 0% ANR rate in production. Here's how they did it.
Reddit: Making Android Videos Super Fast
Reddit cut video loading time in half on Android. Here's how they did it with ExoPlayer optimization, player pooling, and smart prefetching strategies.
Reverse Engineering iOS to Fix SDK Crashes
Phil Niedertscheider from Sentry reverse-engineered Apple's private frameworks after iPadOS 26 broke a fundamental assumption: that successful type casts guarantee the object is actually that type.
Reduce App Size and Boost Performance in React Native
Keval Goyani from Simform reveals how React Native apps can shed serious weight without sacrificing performance. His team's optimization techniques cut bundle sizes dramatically while keeping apps lightning-fast.
Grab’s Mac Cloud Exit supercharges macOS CI/CD
Grab moved 250+ Mac minis from a US cloud to a Malaysian data center. The results? 40% faster builds and $2.4M saved.
Scaling Mobile UI Testing with AI
Trendyol scaled from 4,869 to 10,400 UI tests in under a year — while keeping execution under one hour. Here's how AI became their test generation engine.
Migrating from KAPT to KSP: A Complete Guide to Kotlin's Future
Chamod Lakmal from PickMe reveals how switching annotation processors can cut Android build times in half. If you're still using KAPT, you're leaving serious performance gains on the table.