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When Only EAS Build Fails with "No matching variant", Check Your Local android/build First
Gradle passes on your machine, but the Android build on EAS stops at "No matching variant of project". Reading the reports on GitHub, I traced how a Windows-generated autolinking cache can reach the Linux builder, and wrote a small script that checks for it before you queue a build.
My App Open Ad Only Showed When the App Came Back From Background. The 'Returned to Foreground' Signal Fired Before the Ad Had Loaded
On a cold start, the app open ad in my Android app never showed. The foreground signal came before the load began. Here is how I split the signal from the load and rebuilt it as logic you can test ordering by ordering.
Take the Prompt Out of the App: An Edge Function Gateway With the Guard on the Output Side
A system prompt shipped inside your app is readable from the day it ships. This walkthrough moves the prompt into a Supabase Edge Function, lets the client name only a task, and puts the guard on an output allowlist, with tested code.
App Review Says "Guideline 2.1, Blank Screen": Three Places to Look in an Expo Release Build
It opens fine in TestFlight, yet review rejects it for a blank screen. Here is the order I check things in an Expo + EAS release build: which environment holds your variables, secret visibility during config resolution, and what the reviewer's device does differently.
Can You Move an iOS App From an Individual Account to an Organization Later? Five Things to Clear Before App Transfer
I checked Apple's own pages on moving an app published under an individual Apple Developer account to an organization account later. Here is what must be true first, what to clear, and what does and does not carry over.
Before You Ship: Go Looking for Your Own Keys Inside the Exported Expo Bundle
A key can be missing from your source and still be sitting inside the finished app. I ran expo export on Expo SDK 57, searched the bundle with grep and a short Node script, and recorded which secrets show up and which don't.
Before You Promise "Release in a Week" — Break Down the Days You Will Spend Waiting
When your Rork app is ready, the release date still isn't yours to set. Break the wait into Apple enrollment, Google Play closed testing, and first review, then work out the earliest and the late-case date with a small TypeScript script.
When only notifications fail in Expo Go: three checks, then the shortest move to a development build
If push notifications never reach your Android device in Expo Go, check these three things before touching device settings, then move to a development build with the fewest steps. Also: how to spot what else Expo Go can't test.
Before You Build a Client's App in Rork, Decide Who Owns the Store Account
When you hand a Rork-built app to someone else, the first decision is which developer account publishes it. A walk through Apple's and Google's official transfer rules: what must be true before a transfer, what carries over, what disappears, plus a small script that lists the settings in your project tied to your own name.
Japanese Headings Won't Turn Bold on Android: How to Trace and Fix a fontWeight That Does Nothing
A troubleshooting note for Rork apps where headings look bold on iPhone but stay thin on Android. How to tell the symptoms apart, pick weights through fontFamily, and verify the fix.
Sonnet 5.5, GPT-6.1 Sol, or Opus 5.5? I Decide by the Kind of Fix Before I Pick the Model. A Week of Logging Where My Rork Credits Went
After Rork's model menu settled into Sonnet 5.5, GPT-6.1 Sol, and Opus 5.5, I sorted my fixes into three kinds and assigned a model and effort level to each. Here is how I read the changelog, the tiny ledger that tracks where each credit goes, and the rule I drew from a week of entries.
Multiseat Purchases Are Already On: Decide Whether to Keep Them Before October 22
Multiseat purchases for subscriptions have been on by default in App Store Connect since September 16. Before Volume Purchasing starts on October 22, here is how an indie developer can decide, in four questions, whether to keep them.