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Building a Flutter SDK for Embrace

Company: Embrace · Dec 7, 2022
Platform: Flutter

Very Good Ventures just shipped a production Flutter SDK in three weeks with 100% test coverage. Here's how they partnered with Embrace to bring enterprise-grade observability to Flutter developers.

Shopify went all-in on React Native, but had one critical question: Is it actually as fast as native? They needed proof, not assumptions.

Turo's iOS team took their crash-free rate from 99% to 99.99% in just one year. Here's how a lean 5-engineer team achieved what most would consider impossible.

Swiggy discovered 8% of their delivery drivers were running cloned apps and spoofing GPS locations. This was breaking their live order tracking system and creating chaos for customers.

How We Reduced Our ANR by Three Times

Company: OkCredit · Oct 18, 2022
Platform: Android

OkCredit slashed their ANR rate by 67% and cold startup time by 70%. Here's how they debugged one of Android's most frustrating problems.

Conquering Our Android Crash Count

Company: Strava · Oct 18, 2022
Platform: Android

Strava thought they had a few hundred crashes per day. Crashlytics revealed they were missing 42,000 crashes per week.

Shift-Left iOS Testing with Focus Flows

Company: Lyft · Oct 12, 2022
Platform: iOS

Lyft's iOS tests were spending 93% of their time on steps that had nothing to do with what they were actually testing. Sound familiar?

Ishan Khanna from Tinder shares a hard-earned lesson: that shiny third-party SDK could be a ticking time bomb for your app. Here's the framework his team uses to avoid disaster.

Instawork runs over 1 million tests daily in their CI pipeline. Here's how they made unit testing a core engineering practice, not an afterthought.

Android UI Testing with Firebase

Company: Turo · Jul 19, 2022
Platform: Android

Turo's Android team hit a wall: their single-device test setup couldn't keep up with their growing UI test suite. Hours of wait time for a single test run wasn't going to cut it.

Automating Mobile Event Verification

Company: Swiggy · Jul 19, 2022
Platform: iOS / Android

Swiggy was drowning in analytics chaos. Thousands of events per session, scattered specs across docs, and manual verification eating up engineering time.

Booking.com's Android team built their own rendering performance monitoring system. Here's why Google Play Console metrics weren't enough.

Very Good Ventures shows how to build a production-ready Flutter app with Supabase that achieves 100% test coverage. This isn't your typical Firebase clone tutorial.

Dream11 handled 5.5 million concurrent users and 80 million requests per minute during IPL 2020. Their secret? A custom performance testing framework called Torque.

Continuous Load Testing

Company: Slack · Apr 29, 2022
Platform: iOS / Android

Slack's engineering team ran into a classic performance testing problem: spinning up load tests was so time-consuming that teams avoided doing it. Their solution? Never stop testing.

Tokopedia's iOS team was drowning in 30-minute unit test cycles with 65 developers fighting over 9 CI/CD machines. They cut that time by 8X.

Grab's iOS team turned flaky CI tests into a 50% CPU reduction story. Their secret? Observability tools and some creative workarounds for Xcode 13.1's notorious Spotlight bug.

Spotify just open-sourced the tool that helped them slash their Android app size by 9%. Here's why app size matters more than you think.

Migrating payment infrastructure is risky business. Callstack shares how they prevented production breakage during a critical Stripe React Native SDK migration.

Tokopedia shipped Android App Bundles and immediately hit a wall: mystery crashes on random devices. The culprit? Sideloaded APKs missing critical resources.

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