Free guide · Oct 11, 2026

Mac Duo: check your lid sensor and preview six effects

How to check your MacBook sensor, preview the effects, and configure the lid animation.

The short version

I would check the exact MacBook model, install the matching build and try Replay before enabling screen capture. Mac Duo is a free MIT Swift/Metal app that animates the laptop display with lid movement. This guide follows its current README; I haven't tested a physical MacBook. The published effect videos are generated artwork.

What's in the full guide

  1. 011. Verify the exact model
  2. 022. Install the official build
  3. 033. Try Replay first
  4. 044. Enable real desktop capture
  5. 055. Make it comfortable
  6. 06Updating and recovery
  7. 07Sources

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