Golden services

SeniorVoice is a voice-first WhatsApp companion for older adults in Latin America. The senior sends a voice note and gets a short, warm voice note back. No app to install, no screens to learn. The problem: many older adults live alone and find smartphone apps hard to use, but voice notes are already part of their daily WhatsApp habit. How it works: the audio is converted with ffmpeg and transcribed by Muse Voice Transcribe, Muse Spark 1.2 writes the reply, and MMS-TTS (Meta open weights, self-hosted on Cloud Run) turns it into speech. The webhook is built in Node.js with signature validation, message deduplication and graceful fallbacks. Meta tooling highlight: a carefully designed system prompt keeps the assistant warm, concise and honest about being a virtual assistant, without robotic disclaimers. It proactively proposes light mental exercises (trivia, riddles, pleasant memories) to stimulate cognition, and kindly redirects any medical or logistics request to family or a professional. It never promises actions it cannot perform.