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Discord wanted to measure Voice Messages impact, but A/B testing would break the feature. Network effects meant users in control groups couldn't receive voice messages from treatment users.

Why do engineering teams obsess over shaving megabytes off their apps? A Reddit thread reveals the hidden costs of bloat.

Callstack reveals how to add React Native to existing native apps without a full rewrite. This brownfield approach is changing how engineering teams think about cross-platform development.

How We Reduced GrabX SDK Initialisation Time

Company: Grab · Nov 22, 2024
Platform: iOS / Android

Grab's SDK was taking 4 minutes to initialize with 400MB of config data. That's a cold start problem that kills autoscaling.

Fauzi Mubarok from IDN Engineering wraps up his floating view series with the polish that separates good Android UIs from great ones. That magnetic snap-to-edge effect you see in TikTok and Shopee? Here's how t...

Fauzi Mubarok from IDN Engineering breaks down how to build those addictive floating reward bubbles you see in TikTok and Shopee. Turns out, creating smooth overlay views in Android requires some clever system-...

Callstack reveals how brownfield React Native integration lets you modernize native apps without the dreaded full rewrite. This collection of insights shows exactly how companies like Shopify and Zalando pulled...

Still think Flutter is too slow for production apps? Very Good Ventures just dismantled the 6 biggest myths holding teams back from adopting this cross-platform framework.

Building a Compose Design System at Scale

Company: Glovo · Nov 12, 2024
Platform: Android

Matias Isella from Glovo reveals how they built a Compose Design System that serves multiple apps at scale—without being locked into Material Design. Their API decisions could save you months of architectural h...

Duolingo ships UI changes in minutes, not weeks. Their server-driven UI system bypasses app store releases entirely.

Jetpack Compose Performance

Company: Trendyol · Nov 6, 2024
Platform: Android

Hasan Kuşçu from Trendyol reveals why your Jetpack Compose app might be recomposing way more than it should. The culprit? Compose treats most classes as unstable by default.

Costa Fotiadis from Just Eat Takeaway shows how custom Detekt rules caught edge-to-edge violations before they hit production. No more relying on reviewers to remember Android 15's breaking changes.

Stefan Jandl from Sentry just cracked a tough problem: how do you auto-instrument performance monitoring in Unity games without asking developers to write a single line of code?

Android SDK Release Update

Company: Google · Oct 31, 2024
Platform: Android

Matthew McCullough just dropped a bombshell: Android is ditching its annual release cycle. If you're building for Android, your entire 2025 planning timeline just changed.

What's New in Gemini in Android

Company: Google · Oct 31, 2024
Platform: Android

Sandhya Mohan from Google just dropped the biggest Gemini in Android Studio update since launch. If you're still manually writing commit messages and test scenarios, this changes everything.

Grab's configuration management SDK was crushing service performance with memory spikes and CPU throttling. 98% of services were loading 100x more data than they actually needed.

Real User Monitoring isn't just a performance tool. It's the bridge between what you think users experience and what actually happens in production.

Tales of Performance Engineering

Company: Mercado Libre · Oct 9, 2024
Platform: Android / iOS

Diego Parra from Mercado Libre's Performance Engineering team just shared how they slashed API response times by 60% with one strategic fix. The culprit? Regex compilations eating 40% of CPU cycles.

DoorDash handles 2 billion orders annually, and every ETA prediction matters. Their old tree-based models couldn't keep up with the complexity.

Taj Darra just announced that Google is opening Gemini Nano to all Android developers. On-device AI just became accessible for production-ready mobile apps.

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