Observed arrival · 2026-10-16
KnockKnock: a boss key you knock
A $5 Mac app uses a double knock on the laptop’s base to hide open windows behind a decoy app, then restore them with another knock.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- MacBook users who want a quick screen-hiding gesture
- Worth noticing
- Typing, clicking, and laptop movement are described as filtered out; calibration is said to take four knocks.
Field notes
The page describes a motion-sensor trigger rather than a keyboard shortcut: double-knock to hide windows and bring up a chosen decoy, then knock again to restore them. It says typing, clicking, and moving the laptop are filtered out, with calibration taking four knocks. Compatibility is limited to MacBooks with M2 or later and M1 Pro models; the page excludes base M1 and desktop Macs.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue