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Colin Cornaby

@colincornaby.me
219 followers 164 following 47 posts

www.colincornaby.me I'm a programmer in Portland, OR doing graphics rendering and performance on Mac, iOS and visionOS.

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Colin Cornaby @colincornaby.me · 12/04/2026
Wrote up some thoughts about Mythos, why I think it's actually not publicly available, and what it says about LLM scaling
colincornaby.me
Anthropic’s Mythos implies LLM scaling has hit a wall
There's a series of articles that have been written casting doubt on Anthropic's claims of Mythos as some leap in cybersecurity. Tom's Hardware wrote up a good summary. I've seen other industry write ups like this one that also cast doubt on Mytho's prowess. When I read about Mythos one thing stood out to me: It didn't matter if the modal was aligned or safe.
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Reposted by Colin Cornaby
Miguel de Icaza @migueldeicaza.bsky.social · 27/01/2026
Fabulous post from @math-rachel.bsky.social on dark flow and vibe coding: www.fast.ai/posts/2026-0...
fast.ai
Breaking the Spell of Vibe Coding – fast.ai
Sinister variations on the positive state of flow
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Colin Cornaby @colincornaby.me · 08/01/2026
Inspired by a blog post on how we don't need to check LLM outputs anymore - I wrote a bit on how I worked with Claude to successfully produce code that can be maintained by cats.
colincornaby.me
Code for Cats – or how your LLM is a cosplayer
The other day I read a post entitled "Opus 4.5 is going to change everything". The gist was with Claude Opus 4.5 it's no longer necessary to review code. I have a vague idea, but you are right - I do not know how the applications are actually assembled. Especially since I don’t know Swift at all. This used to be a major hangup for me.
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Tim Mitra ᯅ 🇨🇦🇺🇦 @timmitra.bsky.social · 09/12/2025
Issue 23: diff #visionOS - Musing Around Logitech Muse + Vision Pro is finally the combo we hoped for with visionOS 26.2 β Great app support, strong dev tools, and inspiring accessibility stories. Also: selling a used Vision Pro in 2025… quite the ride. it-guy-technologies.kit.com/posts/issue-...
it-guy-technologies.kit.com
Issue 23: diff visionOS - Musing Around
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Kevin Morgan @mrgan.com · 30/09/2025
Nova is my second most used app—always open, always close in the cmd-tab switcher. In a sea of clunky Electron software, ugly UIs, and constant nags, it feels like a refuge.
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Colin Cornaby @colincornaby.me · 10/08/2025
If you're building or playing games on the Mac - your game probably isn't working right out of the box on a notched display. I've written about the issue in AppKit and some options for fixing your game.
colincornaby.me
Your Mac Game Is Probably Rendering Blurry
Problem Solution Affected Games What Apple could do Problem I've submitted the issue described in this post to Apple as FB13375033. This issue has been open since September of 2023. If you game on a MacBook display - your game is probably rendering wrong unless you've adjusted your settings. If you're a developer building a full screen game in AppKit (or Catalyst) - Apple's APIs have some issues you need to be aware of.
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Colin Cornaby @colincornaby.me · 10/08/2025
I wrote a follow up to my "Microwaves" LLM post expanding on a few points. Expecting this to be my only follow up - I'm planning on taking a break on LLMs (and microwaves) for a bit.
colincornaby.me
Follow up to “Microwaves”
Gordon Ramsey - famous hater of restaurant microwaves - throwing one out a window Last weekend I wrote a thing about microwaves that was actually about LLMs. I banged it out after I got mad reading more internet nonsense about LLMs. I thought just a few people on Mastodon would read it. More people than I expected read it. It's not my best writing.
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Colin Cornaby @colincornaby.me · 03/08/2025
In the Future All Food Will Be Cooked in a Microwave, and if You Can’t Deal With That Then You Need to Get Out of the Kitchen
colincornaby.me
In the Future All Food Will Be Cooked in a Microwave, and if You Can’t Deal With That Then You Need to Get Out of the Kitchen
As a restaurant owner - I'm astounded at the rate of progress since microwaves were released a few short years ago. Today's microwave can cook a frozen burrito. Tomorrow's microwave will be able to cook an entire Thanksgiving Dinner. Ten years from now a microwave may even be able to run the country. Recently I was watching a livestream of a local microwave salesman.
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Colin Cornaby @colincornaby.me · 31/07/2025
July update: I added visionOS support to Microsoft's vcpkg C++ dependency manager and completed major feature work on the Mac version of the Cyan's open source game engine. #visionosdev #macdev
colincornaby.me
July Project Update
I missed my June update after diving into Claude Code which I didn't find completely productive and delayed some work. Here's my updated status for July!
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Colin Cornaby @colincornaby.me · 11/07/2025
Here's my last blog post (for now) on Claude Code and AI coding. Because it's timely - I also wrote about the METR study that found developers were slowed by AI tools.
colincornaby.me
Follow up on Claude Code/LLM coding
In my last post - I wrote about my experiences with agentic LLM coding - specifically Claude Code. I also wrote that I felt like the tool as slowing me down without me realizing it. This post is a follow up. I'd like to write about other things - so this post is my way of putting a pin in the subject for now.
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Colin Cornaby @colincornaby.me · 06/07/2025
I wrote about my experiences using LLMs + Claude Code. Both the good and bad. These tools can cut both ways on efficiency. But my biggest concern is I'm worried developers won't know when to put them down. One takeaway I have: devs who use LLMs should have a surface understanding of how they work.
colincornaby.me
LLM coding and the Sunk Cost Fallacy
On my weekends I've been going through LLM coding workflows. I've used web assistants like ChatGPT and full integrations like Claude Code.
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Cyan Worlds @cyan.com · 10/06/2025
🏆 Friends on @playstation.com: YES! The recent release of classic PS1 Myst and Riven have trophies! Take a peek at a few of our trophy icons—we had fun designing them. 📖
A 2x3 grid of stylized, illustrated thumbnails representing trophy icons for the PS1 version of Myst, as seen on PS4 and PS5.

Top row: A glowing blue face projected above a spiked platform in a wooden room. A large gear-shaped structure atop a rocky island plateau under clear skies.

Middle row: A docked airship beside a tall, narrow brick platform. A top-down view of an island map dotted with various architectural symbols.

Bottom row: A reclining mechanical chair with armrests and lights in a dark environment. A close-up of a person’s face seen through a red-tinted frame.A 2x3 grid of stylized, illustrated thumbnails representing trophy icons for the PS1 version of Riven, as seen on PS4 and PS5.

Top row: A golden, metal dome-like structure near water with jagged rocks and mechanical elements in view. Unusual red rock formations rising from a calm sea under a dramatic sunset sky.

Middle row: A circular platform with hanging levers and cables inside a dimly lit room. A tall, industrial tower perched on a rocky island under bright blue skies.

Bottom row: A view through a tunnel toward an underwater chamber filled with blue light and marine life. An open book with a panel laying on the ground. Just a little further away is a pair of brown-booted feet.
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Colin Cornaby @colincornaby.me · 15/06/2025
I've published an experimental version of Nvidia PhysX for visionOS to my GitHub. This fork includes several other patches for building the Gameworks version of PhysX on modern Apple platforms.
colincornaby.me
Nvidia Gameworks PhysX for Vision Pro (and more)
I've published a fork of the Gameworks PhysX to my Github that includes support for Vision Pro. I've also collected several other patches into the fork - including the patches we use for H'uru to build PhysX for other Apple platforms. This includes: Patches to fix compilation issues in modern versions of Xcode Support for Apple Silicon Macs These changes were…
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Colin Cornaby @colincornaby.me · 14/06/2025
Deeply disappointed Apple didn't close out their WWDC keynote with "We Are Apple" youtube.com/watch?v=nbJy0O4UFSM
youtube.com
Tech : We Are Apple (Leading The Way)
YouTube video by Alfred DiBlasi
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Colin Cornaby @colincornaby.me · 14/06/2025
Our old apartment building had a few units they rented to movie stars when they were in town filming. I once shared an elevator with Steve Buscemi. Another time it was John Larroquette. I didn't say anything to either. They looked happy to have some quiet time. Especially Steve Buscemi.
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Steven Levy @stevenlevy.bsky.social · 12/06/2025
20 years today, Steve Jobs gave Stanford grads the speech of all time. He struggled mightily to write it. Here's the inside story about how he did it. www.wired.com/story/how-st...
wired.com
How Steve Jobs Wrote the Greatest Commencement Speech Ever
Back in 2005, Jobs spent months trying to figure out what to say to Stanford’s graduates. Newly released materials show how he went from hopelessly flailing to delivering a talk for the ages.
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Steve Riggins @steveriggins.net · 10/06/2025
Hey @bsky.app your iOS tab bar is fake. We knew it already, but now it’s a sore thumb. Can you consider going native, pls?
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Colin Cornaby @colincornaby.me · 09/06/2025
We'll see how it translates everywhere - but I've really enjoyed using the glass like UI on Vision Pro. It's just really slick and way more polished than the iPad OS theme when running on device.
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Colin Cornaby @colincornaby.me · 09/06/2025
I'm happy Apple is moving back to more complex materials and animations in UI. For a long time they've been giving ground to cross platform frameworks with less opinionated UI. People used to pursue native frameworks for the richer experience.
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Colin Cornaby @colincornaby.me · 05/06/2025
Switch 2 is nice. I like the large screen and more comfortable controllers. The limited software selection though has me wondering if this is just a gateway device now to a handheld gaming PC. I keep looking at it like "this would be even better if I could run my PC copy of Baldurs Gate 3...."
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Colin Cornaby @colincornaby.me · 24/05/2025
Is it correct Xcode still doesn't support Git LFS? It's not bundled, but even if it is installed Xcode seems to ignore it. This means adding files or committing through Xcode can bypass LFS policy (!!!). Would love to be wrong though.
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Colin Cornaby @colincornaby.me · 21/05/2025
Kind of odd a new build of Fortnite hasn't been published for Mac. Especially in since they didn't even need to go through the App Store for the macOS version.
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Colin Cornaby @colincornaby.me · 04/05/2025
Stuff I'm working on in May: Spatial Audio rendering in OpenAL Soft, Nvidia PhysX for visionOS, and fixing a few remaining issues on the Metal version of Plasma. #iOSDev #GameDev
colincornaby.me
May 2025 Project Update
I'm trying to get back into blogging and as part of that I'm going to start posting my personal projects for the month. It's something to keep me posting regularly and also a nice way to hold myself accountable for progress. I'm working on a few things right now: I made improvements in OpenAL-Soft for detecting surround speaker configurations on macOS.
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Colin Cornaby @colincornaby.me · 30/04/2025
I've been working on porting Cyan's Plasma engine - used for titles like RealMyst, Myst V, and Uru - to macOS and Metal. Recently I also ported the engine to iOS. I wrote a blog post about the process - including a taste of a Vision Pro client. #iOSDev #VisionPro #iOS #Myst
colincornaby.me
Porting Cyan’s Plasma engine to iOS – and a peak at visionOS
Screenshot of Uru running on a iPhone 16 Pro Max Over the past few years I've been been working on the Mac version of Cyan's Plasma engine. This engine was used for Cyan titles like RealMyst, Myst V, and Uru. I've been maintaining the port as part of the open source H'uru project. I always wanted to port to iPad as well.
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