I’m building a health-and-fitness coach that lives inside WhatsApp and is powered by Claude. Each subscriber should automatically receive a brief daily message that combines practical health tips with a gentle progress-tracking nudge, and they must be able to ask follow-up questions at any time for real-time guidance. The coach’s expertise has to span nutrition & diet advice, personalised exercise routines, and light mental-well-being support. Tone should remain encouraging, evidence-based, and conversational; no medical claims, just actionable lifestyle coaching. Claude will handle the conversational intelligence, while WhatsApp (likely via Twilio’s Business API, though I’m open to alternatives) serves as the delivery channel. I need a clean, maintainable back-end—Python or Node.js is fine—that can: • store basic user profiles and preferences, • schedule and push the daily messages, • relay user prompts to Claude and return its replies, • track and log interactions so future messages feel tailored. Deliverables 1. Working WhatsApp bot connected to a Claude endpoint. 2. Simple admin panel or config file where I can edit daily message templates and view user stats. 3. Deployment instructions and light documentation that let me hand this to a non-technical teammate. Acceptance criteria: a new user can opt in, receive today’s health tip plus a progress reminder, ask at least three ad-hoc questions, and get appropriate, domain-specific replies in under five seconds per request. If you’ve integrated LLMs with WhatsApp before, especially using Twilio, and can demonstrate secure handling of user data, I’d love to see your approach and timeline.