Observed arrival · 2026-10-29

Annex makes another computer a second screen

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

A free, open-source app for extending or mirroring screens between Mac, Windows, and Linux computers.

Landing page captured for the 2026-10-29 issue.

For: People setting up a second screen across computers
Worth noticing: First pairing uses a six-digit PIN; afterward, paired computers remember each other's keys.

Field notes

Setup is described as a three-step process: install on both machines, turn on sharing for the computer providing its screen, then select it and choose Extend or Mirror. The first connection uses a displayed six-digit PIN; paired computers are said to remember one another afterward. Downloads are listed for macOS, Windows, and several Linux distributions, with signatures, releases, documentation, and source code linked from the page.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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