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1

Sign in

Go to vibely.sh and sign in.
2

Pick Mobile App

On the new-project screen, choose Mobile App. This selects vibely-expo (Expo SDK 57 + React Native).
3

Describe your app

Be specific about platform-flavoured features. “Build a habit tracker. Daily streak counter, push notifications at user-chosen times, biometric unlock. Use Supabase for auth and storage.” beats “habit tracker.”Mention native APIs you need (push, camera, biometrics, location, contacts) — the agent will pick the right Expo SDK module.
4

Open the web preview

The right pane shows a <short-id>.vibelyagent.com iframe — the Metro web target. Use this to iterate on layout and logic.
5

Scan with Expo Go

Install Expo Go on your phone. Click QR in the project header and scan with your camera (iOS) or the Expo Go app (Android). The app loads on-device with hot reload.Expo Go is required to test camera, push, biometrics, secure storage, and most other native APIs.
6

Iterate

Prompt freely. Each turn updates code; both web preview and the device refresh together. “Add a stats screen with a 30-day heatmap.” “Move the streak counter into the header.”
7

Build for the App Store / Play Store

See Ship to stores. You’ll need an Apple Developer account (99/yr)foriOSandaPlayConsoleaccount(99/yr) for iOS and a Play Console account (25) for Android. Vibely drives the EAS build and uploads on your behalf.
Web preview, then Expo Go

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Tips for a good first prompt

The mobile first-prompt checklist — naming native features so they route to the right Expo module, picking a navigation pattern, orientation, and a vibe in mobile terms — is in Prompting → Your first prompt.

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What “good” looks like at the end of turn 1

  • File-based routes under src/app/ (Expo Router) with at least Home + one detail / settings screen.
  • Working tab or stack navigation between them.
  • StyleSheet styling driven by the theme tokens, consistent with your stated vibe.
  • Auth wired if you mentioned it (Supabase magic link or OAuth).
  • Native modules added if you mentioned them (push, secure-store, etc.).
If the agent shipped only a stack of <Text> placeholders, prompt: “Replace placeholder content with real screens — no Coming soon text.”

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Web preview vs Expo Go: when to use which

Use the web preview for fast iteration; switch to Expo Go before saying “ship it.”

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Next

Native capabilities

Camera, push, biometrics, geolocation, deep links.

Ship to stores

EAS builds, TestFlight, Play Console.