Building a 100% Local Meeting Transcription App for macOS with whisper.cpp and ScreenCaptureKit

Short summary

Scripta is an open-source macOS app that transcribes meetings locally using whisper.cpp for microphone audio and Apple's SFSpeechRecognizer for remote participant audio, generating summaries with local Ollama. Built to comply with corporate security policies prohibiting cloud audio transmission. Detailed implementation covers dual-channel capture, real-time chunking, noise filtering, and Metal GPU acceleration.

• •Open-source local meeting transcriber eliminates corporate security concerns over cloud audio transmission
• •Hybrid dual-channel approach (Whisper + SFSpeechRecognizer) solves single-stream limitation of existing apps
• •Complete technical walkthrough with Metal acceleration, ScreenCaptureKit audio capture, and real-time processing patterns

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