I’m building a health-support application in which the standout feature is live, text-based consultation with certified doctors. The entire project revolves around making these conversations smooth, secure, and easily accessible so users can get professional advice any time they need it. What I need from you: • A clean chat interface optimised for quick, private text exchanges. • A stable, encrypted messaging backend that can handle multiple simultaneous user–doctor sessions without lag. • Basic profile screens for both users and doctors, including medical registration proofs on the doctor side. • Push or in-app alerts so users know when a doctor has replied. • Lightweight analytics (number of sessions, average response time) to help me monitor service quality. If you have experience integrating HIPAA-grade (or similar) security, Firebase Realtime Database, Socket.IO, or any comparable messaging stack, do mention it. The rest of the app—fitness tracking or diet plans—may come later, but for this milestone the only deliverable is a fully working text-chat consultation module ready to plug into my existing Flutter codebase. Hand-over criteria: 1. I receive the full source code, build instructions, and a short screencast demonstrating a successful doctor–user chat. 2. The feature runs cleanly on both Android and iOS emulators. 3. Message delivery is <2 seconds round-trip under normal 4G conditions. Looking forward to seeing how you can turn quick, reliable doctor chats into a seamless experience for our users.