I have a fully-functional application that currently lives inside the Base44 no-code environment. I will hand over the complete Base44 source package and walk you through how everything is wired, but now I need the app pulled out of Base44 platform and turned into a maintainable codebase that runs natively on Android and on the Web. Once it is outside Base44, I’d like you to: • Refresh the UI/UX so it feels modern and consistent across both targets. • Add two core features—secure user authentication and a payment-gateway integration (you’re free to recommend the best provider). • Hunt down and fix existing bugs while tightening overall performance. I’m happy to discuss the stack you prefer (React, Flutter, Angular, etc.); what matters most is clean, well-documented code and a smooth deployment pipeline that lets me release an Android APK and a live web build without relying on Base44 again. I will provide test credentials, design guidelines, and prompt feedback throughout the process. Deliverables 1. Migrated, human-readable source code hosted in my Git repo. 2. Android build (APK or AAB) plus Web build ready for production hosting. 3. Implemented user auth flow and working payment checkout. 4. Updated UI/UX that reflects my style guide. 5. A short hand-off document explaining setup, build commands, and any future extension points. If this sounds like a challenge you enjoy, let’s talk timing and next steps.