Shipping Six Wallpaper Apps From One Codebase: A White-Label Build Setup with app.config.ts and EAS
Maintaining near-identical wallpaper apps in separate repos means every fix has to be copied six times — and one day you miss one. Here is the white-label setup I moved to: one codebase that emits six apps through a single APP_VARIANT, with the real app.config.ts and eas.json, plus a validation script that catches config drift before the build runs.
When Your Android Vitals ANR Rate Climbs: Notes on Keeping the Main Thread Free in React Native
How I traced and fixed a rising Android Vitals ANR rate in a Rork-built React Native app, plus the main-thread rules I rolled out across six apps in production.
Managing Startup Time as a Budget: How I Deferred SDK Init Across Six Apps
Instead of optimizing startup ad hoc, I switched to allocating a per-phase time budget and defending it. Here's how I deferred SDK init across six Rork-built apps and added a CI gate that fails the build when the budget is exceeded.
Growing a Staged OTA Update System Without Breaking It
Shipping an EAS Update to every user at once is dangerous. From channel design to staged rollout to automatic rollback, here is the delivery architecture I settled on across 50M cumulative downloads, with working code.
Diagnosing 'Network request failed' That Only Hits Android Emulator in Rork
Your fetch returns fine in the iOS simulator but throws 'Network request failed' the moment you switch to Android. Here is the diagnosis order I use to separate localhost, cleartext, certificate, and proxy issues, with code that actually compiles.
Two Months of Rork × Hermes in Production — Cold Start and Memory in Real Numbers
What actually happens to cold start, memory, and crash rates after running Rork-generated apps with Hermes enabled in production for two months. Field notes from an indie developer with 50 million cumulative downloads.
Fixing Layout Bleed on Android 15 (API 35) in Rork Apps
Once you bump targetSdkVersion to 35, Android 15 enforces edge-to-edge display, and Rork-generated tab bars and headers start sliding under the system bars. Here are the patterns I use with react-native-edge-to-edge and useSafeAreaInsets to fix it properly.
Staged migration of a Rork-generated RN project to the New Architecture — notes from running six wallpaper apps in parallel
An implementation log for incrementally enabling Fabric and TurboModules on a Rork-generated React Native project, validated in parallel across six wallpaper apps. Covers flag design, compatibility triage, and KPI comparison based on actual production data.
Why FlatList's onEndReached Fires Multiple Times — and How to Stop It
After wiring up infinite scroll in a Rork-generated FlatList, you may notice the same paginated request hitting your API two or three times in a row. Here's why onEndReached fires more often than you expect and how to add a two-layer defense that survives production.
Production-Quality VoiceOver and Dynamic Type for Rork Apps
An indie developer's implementation notes for adding production-quality VoiceOver, Dynamic Type, and Reduce Motion support to React Native apps generated by Rork — covering label design, focus management, and regression testing.
Fixing 'Row too big to fit into CursorWindow' on Android When AsyncStorage Holds Too Much in Rork
When a React Native app generated with Rork stores large JSON or image metadata in AsyncStorage, Android can throw a Row too big to fit into CursorWindow exception. Here are the practical fixes — MMKV migration, chunked keys, payload trimming, and compression — explained from real wallpaper-app experience.
Rork FlatList Crashes from Direct State Mutation – Defensive Copy Fix
FlatList crashes in Rork-generated code are often caused by direct array mutation. Learn the defensive copy pattern that eliminated 50+ crashes in 28 days from a 50M-download app's v2.1.0 update.