Observed arrival · 2026-11-03

DoorMutex: a traffic light for the home office

doormutex.org Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

This open-source home-office status system uses signals like microphone activity, calendar events and screen lock to set a red, yellow or green status.

Landing page captured for the 2026-11-03 issue.

For: People working from a home office with family nearby
Worth noticing: The hub does not request calendar event titles; its e-ink display can show an end time and a hint such as “camera on.”

Field notes

The hub weighs competing signals: microphone or camera activity sets red, while a locked or shut-down computer sets the status to off. Calendar access is read-only, and the hub does not request event titles; an optional e-ink display can show an end time and a hint such as “camera on.” The site says the hub, Linux companion, KDE widget and web app run today, while the purpose-built light remains in design.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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