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Show HN: I reverse engineered Apple's video wallpapers

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Re: Show HN: I reverse engineered Apple's video wallpapers

#43
post #32

Earlier quoted context omitted.

Same! I distinctly remember seeing portions of this wallpaper that led me to believe it's procedurally generated and not simply a collection of video files, and had to rewatch it to confirm. There are several points where the date and time match the system date and time down to the second.

It features the current date and time with seconds, so it must be rendered on the fly.

The assets and some? of the scripting for it are in a bundle at:

/System/Library/ExtensionKit/Extensions/WallpaperMacintoshExtension.appex

Can see the time and date being added here I think:

System6ControlPanel.program

    //
    //  System 6 Control Panel
    //  Macintosh 40th Anniversary
    //
    //  Copyright © 2024 Apple. All rights reserved.
    //
    //----------------------------------------------

    start simultaneous
        scale out
        let image = "System6ControlPanel"
        ...
        ...
        add time at 267, 165 name "Geneva12"
        add date at 274, 239 name "Geneva12"
    end simultaneous

Re: Show HN: I reverse engineered Apple's video wallpapers

#46
post #8

Are there specific video wallpaper sets I can download that leverage these features?

You can use any website that lets you download video wallpapers, or you can make one yourself. Any video can be played

well I'd specifically want one that's well-designed to make use of the various features you pointed out: highlight battery level, thermals etc.

Re: Show HN: I reverse engineered Apple's video wallpapers

#49
post #14

remember when windows had html wallpapers. brb gonaa agent something that i hope doenst supply chain my entire life

The little IE4 widgets called "active desktop"?

You could set a full-screen, interactive browser page as the backdrop of your desktop. Not sure what communication it was allowed to have with the desktop events, but I always thought it was a clever hack that could have been explored and expanded further.

Re: Show HN: I reverse engineered Apple's video wallpapers

#50
Nice project, thank you for sharing!

Out of curiosity: how much did you need to steer Claude while working on this project, and how long did it have?

Asking partly because I see "Co-Authored-By: Claude Opus 4.7 (1M context) ", and partly because I keep hearing "so what do you do with all these agents", and this is a good example of what people do with all these agents.

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