Use Local Whisper

Switches voice transcription from OpenAI's Whisper API to local whisper.cpp. Runs entirely on-device — no API key, no network, no cost.

Channel support: Currently WhatsApp only. The transcription module (src/transcription.ts) uses Baileys types for audio download. Other channels (Telegram, Discord, etc.) would need their own audio-download logic before this skill can serve them.

Note: The Homebrew package is whisper-cpp, but the CLI binary it installs is whisper-cli.

Prerequisites

• voice-transcription skill must be applied first (WhatsApp channel)
• macOS with Apple Silicon (M1+) recommended
• whisper-cpp installed: brew install whisper-cpp (provides the whisper-cli binary)
• ffmpeg installed: brew install ffmpeg
• A GGML model file downloaded to data/models/

Phase 1: Pre-flight

Check if already applied