Matt Massicotte

@massicotte.org

apple platform dev, outdoors, justice, games, he/him Every problem has a simple wrong answer https://github.com/mattmassicotte https://www.massicotte.org https://mastodon.social/@mattiem

A four-cell comic, known as the drowning meme.

The first cell has a hand just above water with the word “society” next to it.

Second cell has a hand approaching, could it be there to help?

Instead in the next cell, it gets a high-five along with the quote “it’s just a tool!”.

The last cell shows the hand now nearly submerged.

3d game scene. Player approaches a rock, selects it to remove the object from the world and add it to inventory. Then the player navigates to a bin, interacts with it and uses a 2D menu system to move the rock into the bin. Player leaves and verifies it is no longer in inventory. Then returns and interacts to move it back.

Yahoo financial news with two posts by MT Newswire, both with a premium badge.

First: Gold rises as the dollar climbs to the highest in more than a year.

Second: Update: Gold falls as the dollar climbs to the highest in more than a year.

3d scene with a floor and large sphere. Small rocks are appearing. One shows up on the surface of the sphere, rotated correctly to match the sphere’s exterior shape.

Very cropped in 3d scene. There is a semi-circular crosshair in the middle of the screen. As it passes over a cylinder, it transforms in color, size, and adds additional segments.

Navigation around a largely empty 3D scene, with a small amount of ice and rock texture around a single mountain. The mountain has a hole cut in the side, and after, a pause, the camera proceeds right though. Falling, it looks back up at the surface getting smaller and smaller.

screenshot of swift code:

// makes sense if it's reasonable to use this
// protocol off main and you want to support that
protocol Option1 {
func coreFunction()
}

@MainActor
extension Option1 {
func mainOnlyFunction() {
}
}

// much easier for main-only users, but does
// reduce flexibilty
protocol Option2 {
@MainActor
func coreFunction()
}

@MainActor
extension Option2 {
func mainOnlyFunction() {
}
}

black background with four lines of text reading:

corruption level 0.0
corruption level 0.1
corruption level 0.5
corruption level 1.0

The letters of the lines flip, shift, jitter, and rotate by increasing amounts according to the level.

Sign attached to a pole that reads:

WARNING

alcohol consumption will make you believe you are whispering. I assure you, you’re not.

screenshot of swift code, with a dark theme:

// you can import AppKit in Catalyst, so a guard is needed
#if canImport(AppKit) && !targetEnvironment(macCatalyst)
import AppKit
#elseif canImport(UIKit)
import UIKit
#endif

// but inverting the order makes it so much simpler!
#if canImport(UIKit)
import UIKit
#elseif canImport(AppKit)
import AppKit
#endif
Public • 13s ‒ Apr 27 at 6:45 AM

screenshot of swift code, with a dark theme:

// you can import AppKit in Catalyst, so a guard is needed
#if canImport(AppKit) && !targetEnvironment(macCatalyst)
import AppKit
#elseif canImport(UIKit)
import UIKit
#endif

// but inverting the order makes it so much simpler!
#if canImport(UIKit)
import UIKit
#elseif canImport(AppKit)
import AppKit
#endif

Screenshot of Swift code, light on dark background:

class NonSendable {
func createTask() {
Task {
// you cannot reference self or any other thread-unsafe
// data from a new concurrent task without more work
// and that makes sense
}
}

func withGCD() {
DispatchQueue.global().async {
// This same problem exists with GCD. You'll need some
// queue to return to.
}
}
}

Screenshot from AWS Amplify of a graph. The trend line is pretty steady, then after a short spike, it goes down to a much lower baseline.

Electric upright bass, red-toned gloss body with dark fingerboard. Set up in a corner next to an amplifier.

Close up shot of a trochus snail perched on top of a rock structure. Its shell is covered in a thin layer of hair algae.

A rocky stream running through a forest.

$Screenshot of Swift Code: // Being non-Sendable, this type cannot cross isolation boundaries. class NonSendable {} // This return value will *always* cross a boundary when // called from an isolated context... nonisolated func makeNonSendable() async -> NonSendable { NonSendable() } @MainActor func test() async { // In 6.2 the compiler is now able to use its flow-sensitive analysis // system (called Region-Based Isolation) to prove that, despite // the type crossing a boundary here, the situation is always safe. let _ = await makeNonSendable() }$

Screenshot of a keynote slide:

"lazy let" is small and in the center. "How?" is much larger over top, and "WHEN??" is even bigger and at an angle.

Case without iPad sitting on 14” MacBook pro.

Screenshot of my Mastodon post with 26 stars

screenshot of Swift code:

let names = [
"Aknot",
"Aziz",
"Billy",
"Jean-Baptiste Emanuel Zorg",
"Korben",
"Leeloo",
"Ruby Rhod",
"Vito Cornelius",
]

Scene from Office Space. The Michael character is just reacting to the suggestion that he change his name to avoid confusion with other Michael Bolton.

“No way. Why should I change? He’s the one who sucks?”

Splitboard gear on the snow, in preparation for some uphill touring.

Screenshot of iOS app showing a feed of Mastodon and Bluesky posts

$screenshot of swift source code: public func observe( isolation: (any Actor)? = #isolation, @_inheritActorContext _ apply: @escaping @Sendable (_ transaction: UITransaction) -> Void ) -> ObserveToken { // let actor = ActorProxy(base: isolation) return observe( apply, task: { transaction, operation in Task { _ = isolation // await actor.perform { operation() // } } } ) }$