Notes from building a screen-memory tool that people can trust. Engineering decisions, the measurements behind them, and the things we decided not to do.
- How we encrypt your screen history — and why it costs 0.2 ms
We had encrypted the index and left the screenshots in plain JPEG. Then we measured.
September 2026 · Engineering - What a screen recorder should never store
Password fields, private windows, card numbers. Excluded at capture, so they never exist.
September 2026 · Privacy - We don't hide the recording indicator
If Pixel Dust is recording, your Mac says so. We think the dot is a feature.
September 2026 · Principles
Pixel Dust is free during the beta. Everything stays on your Mac.
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