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General Questions

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What is Launchtoday?

Launchtoday is a powerful React Native CLI tool designed to accelerate your app development process. It comes pre-configured with essential features that modern apps need, including authentication, database integration, payments, and more.

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What platforms does Launchtoday support?

Launchtoday supports both iOS and Android platforms, with full feature parity across both operating systems.

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Setup & Installation

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What are the system requirements?

  • Node.js v18.18.0 or higher
  • macOS, Windows, or Linux operating system
  • Xcode (for iOS development)
  • Android Studio (for Android development)

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Why am I getting environment variable errors?

Make sure you’ve copied the .env.example file to .env and filled in all required variables. Common issues include:
  • Missing Supabase credentials
  • Invalid API keys
  • Incomplete configuration

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Development

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How do I update to the latest version?

If you forked the repository (recommended approach):
  1. Add the original repo as upstream: git remote add upstream https://github.com/launchtodayhq/launchtoday-rncli.git
  2. Fetch updates: git fetch upstream
  3. Merge updates: git merge upstream/main

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How do I add custom fonts?

  1. Add your font files to the assets/fonts directory
  2. Link the fonts using react-native.config.js
  3. Run npx react-native-asset
  4. Rebuild your app

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How do I target a specific iOS simulator?

To run your app on a specific iOS simulator:
  1. List available simulators:
xcrun simctl list devices
  1. Find your desired device from the list, for example:
iPhone 15 Plus (D7EDC638-041C-4C07-ADB3-FFB558A3C1E4) (Shutdown)
iPhone 15 Pro Max (CBAD5E32-15B8-47B4-9F6B-66C8E84145CE) (Shutdown)
  1. Boot the specific simulator using its UUID:
xcrun simctl boot CBAD5E32-15B8-47B4-9F6B-66C8E84145CE
  1. Update your package.json script to target the specific simulator:
{
  "scripts": {
    "ios:simulator": "yarn ios --simulator='iPhone 15 Pro Max'"
  }
}
  1. Run your app using the updated script:
yarn ios:simulator
Make sure to replace the simulator name with the exact name of your chosen device from the xcrun simctl list devices output.

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Authentication

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Which authentication methods are supported?

  • Email/Password
  • Magic Link (passwordless)
  • Apple Sign-In
  • Google Sign-In
  • Social auth providers through Supabase

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How do I customize the authentication flow?

You can customize the authentication flow by modifying the components in src/screens/auth/. The authentication logic is handled by Supabase and can be customized in src/services/auth.ts.

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Database & Storage

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How do I add new database tables?

  1. Go to your Supabase dashboard
  2. Open the SQL editor
  3. Write and execute your SQL commands
  4. Update your TypeScript types in src/types/supabase.ts

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Where should I store user files?

User files should be stored in Supabase Storage buckets. The template comes pre-configured with an ‘avatars’ bucket, but you can create additional buckets for different types of files.

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Deployment

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How do I prepare for App Store submission?

  1. Update your app’s metadata in Xcode
  2. Configure your certificates and provisioning profiles
  3. Build a release version using Fastlane
  4. Submit through App Store Connect

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How do I prepare for Play Store submission?

  1. Update your app’s metadata in android/app/build.gradle
  2. Configure your keystore for signing
  3. Build a release version using Fastlane
  4. Submit through Google Play Console

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Troubleshooting

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Common Build Errors

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Metro Bundler Issues

Clear the Metro bundler cache: