# Golden services

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [Carlos Marin Villegas](https://cerebralvalley.ai/u/cmarin)
- **GitHub:** https://github.com/cmarinville-hub/seniorvoice-llama-companion
- **Demo video:** https://www.youtube.com/watch?v=5m7L-owvH_c&feature=youtu.be
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1023

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.

## More from Meta Global AI Developer Hackathon

- [Watt-loop](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1020)
- [Spartans](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1021)
- [zeroflaw](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1022)
- [Rajan Bajaj](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1024)
- [poxonetics](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1025)
- [LessonCast](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1026)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1023. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt