Build a secure, high-performance Binance-style trading app for web, iOS, and Android with real-time order books, advanced charting, and a lightning-fast matching engine. Includes KYC/AML workflows, 2FA and biometric login, multi-chain wallet support (hot + cold), customizable UI/UX, push notifications, and an admin dashboard for liquidity, fees, and risk management — fully API-first and ready for rapid deployment and regional compliance.