blah3

blah3 is a native macOS desktop app for 100% offline Speech-to-Text and Text-to-Speech on Apple Silicon. I built this in Rust with zero prior Rust experience — AI gave me the confidence to jump into a systems language and ship a packaged desktop product in days.

The app features CoreML-accelerated Whisper models for transcription, kokoro-tiny TTS for speech synthesis, a floating dictation overlay with hotkey support, silence detection, an onboarding wizard, and DMG packaging for distribution. Everything runs locally — no cloud, no API calls, complete privacy.