I’m building a single web and mobile platform where users can seamlessly switch between cryptocurrency and forex markets without logging into separate interfaces. At its core, the application must pull real-time market data for both asset classes, display it through intuitive, advanced charting, and support rule-based automated trading bots that can be switched on or off per market. Security and onboarding are non-negotiable. I want biometric authentication (fingerprint or face ID) as the primary login method, with fallback to more traditional flows only if biometrics aren’t available on a user’s device. KYC/AML hooks can be discussed, but the first milestone is getting the biometric flow stable across iOS, Android, and desktop browsers that already support WebAuthn. Because speed matters to traders, tick-level data must update under 200 ms edge-to-edge. I’m open to WebSockets, SSE, or any other low-latency solution you prefer, as long as the numbers on screen never lag the exchange feeds. Charting can sit on top of TradingView, Highcharts, or a custom React component—whichever fits best with the data architecture and licensing. Key deliverables: • Unified order book and trade execution for crypto and forex pairs • Real-time price feeds with <200 ms latency • Candlestick, depth, and indicator-rich charting tools • Configurable automated trading bot engine with simple UI toggles • End-to-end biometric authentication, fully tested on iOS, Android, and major browsers Provide a brief outline of your proposed tech stack, any relevant past builds, and an estimated timeline for an MVP that incorporates everything above. I’ll review code architecture, performance benchmarks, and UI mock-ups before green-lighting full development.