iiinova — where your digital self keeps evolving

We’ve brought back an old favorite: our decidedly non-Retina “ATP Pixels” shirt. atp.fm/store

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We’re still waiting for the M5 Ultra, but in the meantime, we have M5 Pro and M5 Max shirts. atp.fm/store

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For the networking nerds, we have two new shirts that are a twist on our earlier T568A/B shirts—literally. Introducing the T568A and T568B Crossover shirts (gigabit). atp.fm/store

A diagram from the URL below showing the wiring for a “fully crossed” gigabit Ethernet crossover cable.

https://www.elliottelectric.com/StaticPages/ElectricalReferences/DataComm/cat3-cat5e-cat6-cat7-cat8-ethernet-cable-guide.aspx#t568a-fully-crossed-4-pair-crossover-cable-wiring

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We also have a shirt marking the ignominious end of a once-great Mac. atp.fm/store

Line art showing the top front of a Mac Pro case. Beneath it is the text: 2019–2026.

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John Siracusa @siracusa.social · 20/03/2026

Our @atp.fm WWDC 2026 sale includes shirts that attempt to match the colors of the MacBook Neo, right down to the subtly tinted logo that’s meant to match the keyboard colors. (Yes, the Silver is clearly too dark. We were limited by available shirt colors, but we did our best.) atp.fm/store

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This episode also includes my theory about the black “speaker” modules in the MacBook Neo (starts at 41:55). overcast.fm/+BQnv4MC0jU/... You can see the images I’m referencing in the iFixIt teardown video at 00:27 and at 05:57 www.youtube.com/watch?v=PbPC... www.youtube.com/watch?v=PbPC...

The engine bay of an F80 BMW M3 (I think).

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John Siracusa @siracusa.social · 04/02/2026

Here's the new build phase, for reference.

$set -e SOURCE_CAR="${PROJECT_DIR}/SwitchGlass/BuildResources/Assets.car" DEST_RESOURCES="${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}" if [ -f "$SOURCE_CAR" ]; then /bin/cp -f "$SOURCE_CAR" "${DEST_RESOURCES}/Assets.car" fi /usr/libexec/PlistBuddy -c "Delete :CFBundleIconFile" "${TARGET_BUILD_DIR}/${INFOPLIST_PATH}" >/dev/null 2>&1 || true /bin/rm -f "${DEST_RESOURCES}/AppIcon.icns"$

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John Siracusa @siracusa.social · 04/02/2026

I pushed Claude to find a solution. It made a heroic effort, trying many different approaches. But in the end, it did not find a solution.

I've exhausted the standard approaches. The CAR file format is proprietary (BOMStore-based) and there's no public API or tool to selectively remove Icon Image renditions while keeping IconGroup/Icon|mageStack entries.

Summary of Findings

The problem is that actool always generates Icon Image fallbacks when compiling a . icon file, regardless of:

* --minimum-deployment-target value
* --standalone-icon-behavior setting
* --enable-icon-stack-fallback-generation=disabled flag

And macOS 15 prefers these Icon Images from Assets.car over CFBundleIconFile, even when both are present.

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John Siracusa @siracusa.social · 04/02/2026

I gave the coding agent in Xcode 26.3 a shot at the only problem I care about in Xcode right now. I got a predictable but unfortunate result. FB19437407

According to Apple's documentation, there is no built-in way to use both your custom Icon Composer (icon) file for macOS 26 Tahoe AND your custom legacy icon (ApplconGood.icns) for macOS 15 and earlier.

The documentation explicitly states:

"If you add an Icon Composer file to your Xcode project, it replaces any existing icon asset catalog that you previously used to represent your app icon. Xcode automatically generates a similar-looking version of the Liquid Glass icon for previous releases. If you want your existing icon to appear in previous releases, continue to use asset catalogs to represent your app icon."

Your Options

1. Use Icon Composer file only (Applcon.icon):
* macOS 26: Your custom Liquid Glass icon displays
* macOS 15 and earlier: Xcode auto-generates a "similar-looking" icon from your Liquid Glass design (but it won't be your custom ApplconGood.icns)

2. Use Asset Catalog only (Applcon.appiconset):
* macOS 26: The system applies automatic Liquid Glass effects to your existing icon
* macOS 15 and earlier: Your custom icon displays as-is

3. Remove the icon file from the project to use option 2, keeping your custom legacy icon on older systems while accepting the auto-generated Liquid Glass treatment on macOS 26.

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John Siracusa @siracusa.social · 29/12/2025

Sometimes the game just has it out for you…

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John Siracusa @siracusa.social · 28/12/2025

Found lurking on my YouTube home page /cc @cabel.panic.com

An auto-generated music mix that includes “Buggy Saints Row: The Musical”

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John Siracusa @siracusa.social · 17/12/2025

Here’s my skill tree for season one. I was pretty happy with it.

My ARC Raiders skill tree. Survival: 38 (with Security Breach), Mobility: 41, Conditioning: 7

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John Siracusa @siracusa.social · 06/12/2025

www.starwars.com/news/star-wa...

“You’re all clear, kid! Now let’s blow this thing and go home.”

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John Siracusa @siracusa.social · 21/11/2025

After the whole Shadowgate thing, I thought for sure this was…

The Fool’s Errand classic Mac game from 1987.

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And, of course, we have our traditional @atp.fm logo shirts, in full color and monochrome. atp.fm/store#atp

As long as the Mac Pro remains in limbo, we’ll still be offering the Mac Pro Believe shirt. Keep hope alive! atp.fm/store#mac-pr...

A stylized illustration of the front top of a modern Mac Pro with the word "BELIEVE" below it in all caps.

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The M5 is here, and so is our M5 shirt. Celebrate one of the few bits of unambiguously good news in the Apple world! atp.fm/store#m5

And, of course, we also offer a T568B shirt to demonstrate the *other* One True Wiring Standard for Ethernet connectors. en.wikipedia.org/wiki/ANSI/TI... atp.fm/store#t568b

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Next up is one of our nerdiest products ever: the T568A shirt design transforms our logo to demonstrate the One True Wiring Standard for Ethernet connectors. en.wikipedia.org/wiki/ANSI/TI... atp.fm/store#t568a

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macOS 26 Tahoe is a thing that happened. Wear this shirt, inspired by Tahoe’s most awkward icons, as a warning for future generations. atp.fm/store#tahoe

Six different colors of this t-shirt: blue, red, pink, black, orange, and purple. (More colors are available.)

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We’ve also got a cozy new quarter-zip with an embroidered ATP logo that’s great for the crisp fall weather. atp.fm/store#quarte...

ATP quarter-zip tops in four colors: black, off-white, navy, and pine green.

John Siracusa @siracusa.social · 26/09/2025

First up, we have a new version of the Chicken Hat that’s slightly bigger than the original Chicken Hat (about 1/2 inch larger in circumference), and it now has the ATP logo on the front. atp.fm/store#chicke...

A side view of a black hat shaped like a rectangle joined to a triangle, with the tip of the triangle cut off. It looks kind of like the comb on a rooster’s head.

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See how bad it looks in the app where I read your post? This is what I’m talking about.

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John Siracusa @siracusa.social · 11/08/2025

My injury has been tracking yours. We are bruise twins.

A hairy leg with a healing bruise that appears as a purple outline shaped sort of like a bean or maybe upside-down Australia.