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

How I built Scripta — a dual-channel meeting recorder that transcribes your mic and system audio in real-time, generates AI summaries, and never sends a byte to the cloud. I spend 2–3 hours a day on Teams and Zoom calls. By the end of the day, I can barely remember who committed to what. I tried cloud transcription services — Otter.ai, Fireflies, Granola — but my company's security policy doesn't allow meeting audio to leave the corporate network. So I built Scripta: an open-source macOS ap...