メンバーシップ
Advanced guides with production-ready code
Thank you for visiting Rork Lab. We publish advanced guides daily with copy-paste ready code, benchmarks, and production design patterns — practical content we hope you'll find useful as the next step after our free articles.
- ✦Unlimited access to all premium articles
- ✦New advanced guides with code published daily
- ✦Production-ready design patterns & best practices
Premium Articles
499 exclusive articlesHardcoding Your OpenAI Key in a Rork (Expo) App Means It Gets Stolen — Slip a Thin Worker Proxy In Between
Embed an OpenAI or Gemini API key directly in the Expo app Rork generates and it can be extracted from the shipped binary. Here is why a key inside an app is never secret, plus a minimal Cloudflare Workers proxy that hides it (streaming passthrough included), simple abuse controls, and key rotation that needs no app review.
Your Rork App's Photos Look Sideways Only After Upload — Normalizing EXIF Orientation and Stripping Location Metadata
A photo that looks upright in your app rotates 90 degrees once it hits your server. The cause is the EXIF Orientation tag. Here's how to bake the rotation into pixels and strip location metadata with expo-image-manipulator before uploading.
Your List Jumps Back to the Top — Restoring Scroll Position Across Back Navigation and Process Death
How I rebuilt scroll restoration for a wallpaper grid by splitting it into two unrelated problems — back navigation and process death — covering getItemLayout, save timing, and killing the restore flicker.
Your Notification Opens the App but Lands on Home — Routing Rork Apps by Launch State
How to make a notification tap reliably reach its target screen. We cover the three launch states — killed, background, foreground — and a pending-route design that never drops a tap that arrives before navigation is ready.
Where Should Your Rork App Store Auth Tokens? expo-secure-store and a Biometric Gate
How I moved a Rork-generated app's auth tokens out of AsyncStorage into expo-secure-store and put a biometric check in front of every read — including the size limit and sign-out gotchas I hit in production.
Add Long-Press Drag Reordering to Your Rork Favorites List Without the Jank
A practical walkthrough for retrofitting long-press drag reordering onto a Rork-generated favorites list: keeping re-renders down, respecting the worklet boundary, persisting the order, and avoiding ghost cards and scroll conflicts.
Why "Save to Photos" Fails on Only Some Devices in Your Rork App — expo-media-library Permission Scopes and Save Design
Your Rork app's image-saving feature works perfectly on your phone but fails for a subset of users. The real cause is expo-media-library permission scopes. Here is a save flow and album design that handles writeOnly permission, iOS limited access, and Android 14 partial access.
What to Decide Before Spreading One Idea Across Every Apple Platform
Rork Max can generate native Swift for iPhone, iPad, Apple Watch, Apple TV, and Vision Pro from a single idea. But 'can ship to all of them' and 'should ship to all of them' are different things. From an indie developer running several apps, here's a framework for choosing which devices to add and which to skip, reasoned backward from operating cost and usage context.
Why Your Rork List Starts Duplicating and Dropping Rows as It Grows — Cursor Pagination and Resilient Refetch State
The naive offset pagination Rork scaffolds for you quietly breaks the moment your list changes underneath the user. Here is how to move to a cursor contract, fold every fetch state into one usePaginatedList hook, and recover failed page loads with exponential backoff — implementation first.
Bugs Rork Can Fix vs. Bugs You Should Fix Yourself: A Triage Workflow for Exported Code
A practical triage workflow for telling apart the bugs Rork resolves on its own from the ones you should hand-fix in exported React Native/Expo code, with working examples.
Designing Rork Max Iterations So You Don't Burn Through Credits
Rork Max generates native Swift for you, but regenerating on impulse drains credits astonishingly fast. Estimate how many regenerations each screen will take, separate structural prompts from polish prompts, and draw a clear line for what to hand-edit instead. From an indie developer who ships to the store, here's how to treat credits as a budget.
Hardening API Calls in Rork Apps: Token Refresh, Retry, and Idempotency
The fetch Rork generates is left fragile against expired tokens, flaky signal, and double sends. Here is a design that consolidates token refresh, retry with backoff, and idempotency keys into a single client layer, with implementation code and operational numbers.
Rebuilding Rork's Generated Form Screens for Real Use: react-hook-form and zod
Rork's generated forms look fine on screen but fall apart on a real device: the whole screen re-renders on every keystroke, the keyboard hides the submit button, and slow networks invite double submits. Here is how I rebuild them with react-hook-form and zod, from an indie developer's point of view.
How to Write Prompts for Rork — Tips for Creating Apps Exactly As You Envision
Practical techniques for writing Rork prompts: specifying UI design, describing features, and requesting revisions so the app you get matches the app you imagined.
Logging Design for Rork Apps: What to Keep and How to Redact PII
Rork-generated apps tend to scatter console.log everywhere, and when a bug appears you cannot read the part that matters. This designs structured logging, log levels, automatic PII masking, and production send control — all with code you can use as-is.
When Rork-Built Lists Stutter: Designing Image Caching and Prefetch
A FlatList from Rork starts stuttering once the images pile up. Here is how I restore smoothness with expo-image caching, recyclingKey, prefetch, and a move to FlashList, with the device numbers I measured.
Before You Pay $200/mo for Rork Max, Map How Far Expo Reaches in Three Tiers
Wanting widgets or Live Activities makes Rork Max tempting, but most of those features are reachable from the Expo setup that standard Rork generates. Here is how I sort each Apple-native feature into three tiers—reachable in Expo, reachable with a custom module, or where Max is the pragmatic answer—and verify which tier my app is in before paying.
Adding a Minimal Test Safety Net to Rork-Generated Screens
You add one new screen to a Rork app, and a completely unrelated paywall check quietly breaks. This is how to bolt a minimal automated test safety net onto generated code with Jest and React Native Testing Library — protecting only the three places that hurt when they break.
Make ITMS-91053 Stop Catching Your Rork Max App — A Release-Proof Privacy Manifest Workflow
Fixing ITMS-91053 once doesn't keep it away — every new dependency can bring it back. Here's a field-tested workflow to audit your dependency tree, generate declarations, and catch the rejection locally before you upload.
Trimming App Size for Rork Max Apps: App Thinning and On-Demand Resources
Rork Max ships images and fonts straight into the bundle, so a generated SwiftUI app quietly grows heavy. Here is how I use App Thinning and On-Demand Resources to shrink the first download, with the device numbers I measured and a size budget you can run.
Before You Burn Out Hand-Testing Every Release: Automate Your Rork App's Critical Flows with Maestro
With Rork, a prompt that fixes one screen can quietly break another. Here is how I automate the revenue-critical path from launch to paywall using Maestro and run it in CI, including the spots where I got stuck as an indie developer.
A Custom Screen Appears When You Long-Press a Notification in a Rork Max App — Implementing a Notification Content Extension
How to add a Notification Content Extension to a Swift app generated by Rork Max so a custom UI is drawn only when the notification expands. Covers the split with the Service Extension, updating the in-notification UI from a button, sharing state via an App Group, and the order to check when nothing shows — all with working code.
Retrofitting Offline-First Into a Rork App: Persistent Cache and a Write Queue
Reviews kept saying the app was blank on the subway. Polishing error screens was not enough, so I retrofitted TanStack Query persistence and an offline write queue into a Rork-generated Expo app. Optimistic updates, reconnect flushing, and keeping the layer safe from regeneration are all covered with code.
Building an Ambient Display App for Apple TV with Rork Max
Use the native Swift that Rork Max generates as a foundation for an Apple TV app that quietly plays on a loop. We cover Top Shelf, the focus engine, and seamless video loops, with the practical lessons that only surface in real operation.
Running Rork Max Swift Apps in Many Languages with String Catalog
An operational design for taking the Swift apps Rork Max generates into multiple languages, centered on the .xcstrings String Catalog. From extracting strings to handling plurals, pouring in translations, and checking for breakage, these are the lessons from keeping multilingual apps running.
Turning Rork App Crash Reports You Can Actually Read — Field Notes on dSYM Recovery, Context Logs, and Staged Distribution
You added Crashlytics, but the stack traces are unreadable. Field notes on restoring dSYM/mapping symbols, logging the context that led to a crash, and gating distribution with App Distribution and GitHub Actions.
When Widgets and Live Activities Enter the Picture: Deciding on Rork Max by Operating Cost
When home screen widgets or Live Activities become a requirement, do you stay on the React Native build of Rork or move to Rork Max? Here is how to decide by years of operating cost rather than feature appeal, from the perspective of an indie developer maintaining apps long term.
Building Apple Watch Complications with WidgetKit in a Rork Max App
A concrete walkthrough for adding watchOS complications and Smart Stack support to a SwiftUI app generated by Rork Max, covering target setup, cross-process data sharing, and timeline design.
Auditing the Dependencies Rork Generates: A Supply-Chain Hygiene Routine
Even a four-screen Rork app pulls in 900+ transitive dependencies. Before a vulnerability lands and you cannot tell which app is affected, build an audit habit with npm ls, npm audit, overrides, and depcheck — framed for running several apps at once.
Offline-First Sync for SwiftData in Rork Max — Merging Changes Without Conflicts
How to make the SwiftData apps Rork Max generates sync offline-first so edits survive a flaky connection. Instead of overwriting whole rows, we merge per change, propagate deletes with tombstones, and queue writes that can be resent — shown in code, with the production trade-offs that actually mattered.