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Offline voice I/O for macOS A complete text-to-speech and speech-to-text system for macOS that runs entirely on-device. No cloud APIs, no subscriptions — just local AI models doing real work. The problem: I spend hours reading and writing text on screen. I wanted a way to have my Mac read anything to me with a single hotkey, and transcribe audio without sending data to external servers. What it does: Press ⌥S and whatever text you’ve selected (or copied) gets read aloud using Kokoro-82M, an 82-million parameter TTS model running locally on Apple Silicon. The system automatically detects whether the text is Portuguese or English and picks the right voice. Audio starts streaming in under a second — no temp files, no waiting for the full synthesis to finish. ...

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