I’m building a “Food grocery joyride” delivery service and want the very first public release to cover the essentials on both iOS and Android. This phase is deliberately lean: all I need is a polished onboarding flow with secure user login / signup. No order tracking, payments, or courier features yet—those will roll out in later milestones once the authentication layer is proven solid. Core scope • Native or cross-platform code that compiles cleanly for the App Store and Google Play • Splash screen → sign-up / sign-in (email & password as a minimum; social login is a nice-to-have) • Password reset, error handling, and basic validation • After successful auth, route the user to a placeholder home screen so I can plug future ordering modules in later • Well-commented source code in Git plus a short read-me explaining build steps and any services used (Firebase, AWS Cognito, or similar) Acceptance criteria 1. I can create an account, log in, log out, and reset a password on both platforms without crashes. 2. Project builds from scratch with the commands documented in the read-me. 3. All credentials and keys are stored securely (no hard-coded secrets in the repo). If you’re comfortable working with Flutter, React Native, Swift + Kotlin, or similar modern stacks and can deliver the above quickly, I’d love to see your approach and timeline.