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Crack

Turn your MacBook into a squeaky door

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HN · launched Mar 22, 2026 · 11 upvotes (top 39%) · 0 views

Niche: macos system utilities · 448 launches, 31 in the last 7 days ▼ -30% · Explore this niche →

Category and tags
  • Horizontal
  • Hardware & robotics
  • B2C
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

More like this: all 448 launches in macos system utilities →

Could you build this?

No Reading MacBook lid angle hardware sensor values requires reverse-engineering private IOKit APIs or Apple Silicon SMC/accelerometer hardware sensors in native Swift/C.

What it would actually take: A native macOS Swift app that interfaces with undocumented IOHID/IOKit or Apple Silicon SMC sensor registries (such as the lid angle sensor present in newer MacBooks). It requires low-level Darwin systems programming and reverse-engineering Apple hardware sensor identifiers, along with real-time audio pitch/playback modulation based on angular velocity.

Discussion

8 comments analyzed.

Competitors mentioned: Sam Henri Gold's lid angle sensor project, Sam Henri Gold's creaking door project

Concerns raised: Already been done before, Missing TLS/HTTPS support

Competitors

Other products that read as similar to this one : 610 launches clear the similarity bar, closest 8 shown.

Attention rank: #281 of 611 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 129 days after the earliest competitor.

  • hinge · github · 2026-09-10 · 74 upvotes · similarity 0.60
  • SlapMac · ph · 2026-03-28 · 473 upvotes · similarity 0.56
  • KnockSense · ph · 2026-11-12 · 1 upvotes · similarity 0.54
  • BendMac · github · 2026-09-10 · 122 upvotes · similarity 0.53
  • Wobbly · github · 2026-10-06 · 30 upvotes · similarity 0.52
  • Mech keyboard sounds driven by a hidden accelerometer in MacBooks · hn · 2026-03-17 · 6 upvotes · similarity 0.52
  • Keybit · ph · 2026-09-28 · 2 upvotes · similarity 0.49
  • Knock · ph · 2026-03-16 · 168 upvotes · similarity 0.49

Related data

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