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Reading only what Rork changed: the diff routine I run after every re-export
How to read a fresh Rork export as a diff against the last one: clear tracked files before you copy, strip the noise before you count, and stop once before the merge commit lands.
I Added a Dim Screen Button, and iPhones Stayed Dark After the App Was Closed
In expo-brightness, setBrightnessAsync applies only to the current activity on Android, but changes the device brightness itself on iOS. Here is why the cleanup burden falls on one platform only, and a hook that restores brightness through AppState.
Adding .easignore stops EAS from reading .gitignore — count what actually ships to the build
EAS Build decides what to upload from .gitignore, and the moment you add .easignore the two swap places. Here is how I count the bundled files before sending, plus a measured result: once a parent directory is excluded, an exclamation mark cannot bring a file back.
There is no --json on eas env:list, so I rebuilt my environment variable inventory
eas env:list does not accept a --json flag. Here is how I turn --format short output into safe JSON, and how I spot a missing variable across three environments in one line.
Your Widget Extension Can Submit a BGTaskScheduler Request. It Just Cannot Register the Handler
Calling BGTaskScheduler from a widget extension compiles, submits, and returns true — and then nothing runs. Here is why registration belongs to the host app only, and how I moved refresh ownership back where it belongs across my wallpaper apps.
EAS secret visibility does not keep a value out of your app — deciding prefix and visibility separately
The EXPO_PUBLIC_ prefix decides what ships inside your app; EAS visibility decides who can read it. Why stacking them blanks a value on OTA updates, and how to check your build.
When a link opens the browser instead of your app, look at the signing key before assetlinks.json
Android App Links fail silently when the certificate fingerprint does not match. Here is the real keytool output, the upload key versus app signing key trap, and a small checker you can run before you deploy.
I counted how many versions expo install starts recommending after one patch bump
What expo install recommends is tied to the patch version of expo itself. I measured the ledger diff against the npm registry, how far npm install drifts, and the one check worth adding to a generated project.
Adding image paste with expo-paste-input, and moving the disappearing file:// URIs out of cache
How to let users paste images and GIFs into a chat input with expo-paste-input. The URIs that onPaste hands you are temporary files that can vanish before the user hits send. Here is the relocation code and the order I verify it on real devices.
Three Minutes After the Screen Locked, My expo-audio Ambient Sound Went Silent
Why expo-audio stops playing when the screen locks, diagnosed as three separate layers: build config, audio session, and lock screen integration. The three-minute stop on Android is documented behavior.
The Remote Config keys you add after your release path closes are invisible to the build already on devices
A record of recounting what I can still change remotely before my release path closes. A key you add in the console does nothing unless a build that reads it is already on devices. Which switches to ship in the last build, and a shared-defaults bug I measured.
Count your worklets before you start deleting your own code
Hermes V1 attaches 512KB of debug metadata to every worklet, so simply importing Reanimated can add tens of megabytes. Here are the three numbers to count before blaming your own code, and how to choose between the four available fixes.