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Mobile Contributor Onboarding Checklist

A quick-reference checklist for getting PocketPay Mobile running locally. For full details on any step, see CONTRIBUTING.md.

Prerequisites

  • Node.js v18 or later installed (node -v) — LTS recommended, use nvm if you need to switch versions
  • npm v9 or later (npm -v) — bundled with Node.js
  • Git installed
  • Expo Go installed on your physical iOS/Android device, or Xcode (macOS only) / Android Studio if you'd rather use a simulator/emulator

Local Setup

  • Fork the repo, then clone your fork:
  git clone https://github.com/<your-username>/pocketpay-mobile.git
  cd pocketpay-mobile
  • Install dependencies with the required flag:
  npm install --legacy-peer-deps

The --legacy-peer-deps flag is required, not optional — this project has known React Native peer dependency conflicts that a plain npm install will fail on.

  • Wait for the postinstall script to finish. It builds the PocketPay SDK from a pinned source commit, since the SDK isn't published to npm. This step can take longer than a typical npm install — let it run to completion rather than assuming it's hung.
  • Copy the environment file:
  cp .env.example .env

The defaults point at Stellar Testnet and work out of the box for most development. You only need to edit .env if you're testing the Soroban Savings Vault against a real deployed contract — otherwise leave EXPO_PUBLIC_VAULT_CONTRACT_ID empty and the vault screen runs in safe mock mode.

Running the App

  • Start the dev server:
  npm start
  • From the Metro bundler screen, choose one:
    • Scan the QR code with Expo Go on your physical device
    • Press a for an Android emulator
    • Press i for an iOS simulator (macOS only)
  • Confirm the app loads to the wallet welcome screen without a red error overlay

Common Errors

  • npm install fails with peer dependency errors — you forgot --legacy-peer-deps. Re-run with the flag.
  • App fails to build with an SDK-related error — the postinstall script may not have completed. Try rm -rf node_modules && npm install --legacy-peer-deps again and let postinstall finish fully before starting the app.
  • Blank screen or Metro bundler error on first launch — stop the server, clear the Metro cache, and restart: npx expo start --clear
  • Vault screen behaves unexpectedly / tries to hit a real contract — check that EXPO_PUBLIC_VAULT_CONTRACT_ID in .env is empty unless you intentionally set it; a non-empty value switches the vault out of mock mode
  • Expo Go can't connect to the dev server — make sure your phone and computer are on the same network, and no VPN is interfering with the LAN connection

You're Ready When

Questions? Open a discussion or comment on the relevant issue.