Tony Arnold

@tonyarnold
1.7K Followers
865 Following
5.3K Posts

Cocoa-wielding person-like-object.

I help to build Reveal: https://revealapp.com/

GitHubhttps://github.com/tonyarnold
Twitterhttps://twitter.com/tonyarnold

"The model is not the story. A cartel is the story."

This is well worth a read if you're on the Frontier AI train... because there's some minor details you might be missing.

https://www.flyingpenguin.com/the-boy-that-cried-mythos-verification-is-collapsing-trust-in-anthropic/

The Boy That Cried Mythos: Verification is Collapsing Trust in Anthropic | flyingpenguin

A note from one of my favourite authors at the moment.
Let people enjoy things, you weird, depressed little pack of goblins.
Code quality is irrelevant, I prefer to put the user first and ship features with maximum velocity, says the guy rolling out a “Yes” / “Remind me tomorrow!” popup for some cloud thing that stores passwords in plain text
3 Days till WWDC! #WWDC26

Swift Testing traits are a phenomenal way to configure tests and suites with behavior without nesting and excessive boilerplate.

This week we shipped a trait that lets you override task locals in your tests with a simple one-liner: https://www.pointfree.co/blog/posts/209-tasklocal-test-traits

This week’s issue opens with a tone deaf statement about Apple “shipping AI that actually works”.

I reckon you’ve missed the point entirely, new owners, and this entire issue’s tone feels like the canary in the coal mine for what we can expect going forward.

I’d love to be wrong. Please be wrong.

What are we - two issues into the “new” iOS Dev Weekly?

I miss @daveverwer.

I knew where Dave stood on issues that mattered, and his deep connections to the community meant that all kinds of folks and their contributions were on his radar.

I really appreciate this piece by @jsnell.

One of the unrealized promises of Personal Computers has been the ability of the people who bought them being able to program them to do what they wanted. This was a foundational principle of the very early days of computers. You could build you own hardware and then write your own software for it. Even with the best efforts that promise hasn’t been realized.

LLMs may be the monkey paw of that wish fulfillment. Strange days.

https://sixcolors.com/post/2026/06/road-to-wwdc-2026-whats-a-developer/

Road to WWDC 2026: What’s a developer?

Tim Cook and Craig Federighi at WWDC 2024. Next week is WWDC, which has always represented Apple’s connection to its community of third-party developers, and in recent years has also served a…

Six Colors

Every morning they give me a new, even bigger stack of expressions to type check... but I figured out a way to partially automate my job.

https://forums.swift.org/t/recent-improvements-to-the-type-checker/87048

Recent improvements to the type checker

With the Swift 6.4 release converging, I thought it would be a good time to detail some of the type checker performance improvements we worked on since I shared the type checker performance roadmap last year. I'm also going to outline a couple of things we plan on looking at next. Swift 6.4 The disjunction selection and favoring algorithms in Swift 6.3 allowed us to phase out some older, less principled performance optimizations. The work in Swift 6.4 can be seen as a continuation of this tren...

Swift Forums