Stage 1 Path F: The Voice Mesh Protocol — Every Node Gets a Mouth and an Ear

# Runs on every Mac with audio hardware
class VoiceNode:
    def __init__(self, machine_id: str):
        self.machine_id = machine_id  # "mac1", "mac4", "mac5"
        self.whisper = load_local_whisper()  # mlx-whisper or whisper.cpp
        self.tts = LocalTTS()  # macOS say + ElevenLabs for critical
        self.numu = NumuClient()  # NUMU WebSocket for events

    async def listen(self):
        """Always-on mic with VAD + wake word."""
        # Audio capture → VAD → wake detection → Whisper transcription
        # On command: emit to NUMU
        await self.numu.emit("voice.command", {
            "machine": self.machine_id,
            "transcript": transcript,
            "speaker_id": speaker_embedding,
        })

    async def speak(self, event: NumuEvent):
        """Receive voice.speak events and play audio."""
        if event.data["target"] == self.machine_id or event.data["target"] == "all":
            await self.tts.speak(event.data["text"], priority=event.data.get("priority"))

Mac1 mic → "Hey Claw, what's Mac4 doing?"
    → voice.command event on NUMU
    → voice_router (cloud-vm or Mac1) classifies intent: fleet.status(mac4)
    → query mac4 status
    → voice.speak event to Mac1: "Mac4 is running 3 exo models with 78% GPU utilization"
    → Mac1 TTS speaks the response

Mac1: "Tell Mac4 to start fine-tuning the N'Ko model"
    → voice.command → router → voice.relay event to Mac4
    → Mac4 receives relay, speaks it locally: "Mac1 requests: start N'Ko fine-tune"
    → Mac4 executes → voice.speak to Mac1: "Fine-tune started on Mac4"
    → Mac1 TTS: "Fine-tune started on Mac4"

voice.command    — a voice command was detected on a node
voice.speak      — request a node to speak text aloud
voice.relay      — forward a voice message between nodes
voice.mute       — suppress voice output on a node
voice.unmute     — resume voice output
voice.status     — report voice daemon health
voice.transcript — a new transcript segment (for persistence)