Colin Cornaby
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colincornaby.me
Colin Cornaby
@colincornaby.me
https://www.colincornaby.me

I'm a programmer in Portland, OR doing graphics rendering and performance on Mac, iOS and visionOS.
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.
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.
www.colincornaby.me
January 8, 2026 at 3:30 PM
Reposted by Colin Cornaby
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-...
Issue 23: diff visionOS - Musing Around
it-guy-technologies.kit.com
December 9, 2025 at 3:41 AM
It likely has to do with this: www.axios.com/2025/11/05/a...
Nvidia CEO says China on track "to win the AI race"
Jensen Huang tells the FT that he is concerned about a potential regulatory burden on AI.
www.axios.com
November 6, 2025 at 5:50 AM
Reposted by Colin Cornaby
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.
panic.com Panic @panic.com · Sep 30
🎆 NOVA is ON SALE! Nova is a truly special code editor—fast, beautiful, and feature-packed. We want more coders to check it out and maybe fall in love with it.

For two weeks, from September 30 until October 14, Nova is 40% OFF. Hurry!

Get it at ➡️ nova.app
September 30, 2025 at 8:35 PM
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.
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.
www.colincornaby.me
August 10, 2025 at 5:12 PM
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.
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.
www.colincornaby.me
August 10, 2025 at 3:15 PM
Oh I'm not reading the reply guys. I didn't think it would go this wide - but I also knew going in a certain number of people wouldn't get it.
August 8, 2025 at 8:14 PM
Oooo fun
August 5, 2025 at 12:16 AM
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
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!
www.colincornaby.me
July 31, 2025 at 4:00 PM
Is Microsoft even an AI company? They're contractually not allowed to create their own model IIRC with the OpenAI agreement. It seems like a situation where OpenAI is basically the proxy they can use to hide the losses. But they themselves just do hosting.
July 30, 2025 at 10:17 PM
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.
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.
www.colincornaby.me
July 11, 2025 at 6:18 AM
It's not just Swift - I'm not having a lot of success in C++ either. There are wins but a lot of time wasted too. C++ is probably more complicated than Swift though.
July 8, 2025 at 5:49 AM
Just saw this today and it really bums me out. :( I have your Mysterium 2023 print hanging next to my desk - signed by Rand. It always brightens my day by making me think all the time I spent in HyperCard and Myst. Wanted to have you sign too but missed you at the con.

Hope Cyan can bring you back.
July 8, 2025 at 1:33 AM
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.
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.
www.colincornaby.me
July 6, 2025 at 8:55 PM
Actually - I'm remembering there is one way around, but it's ugly and didn't work for my use case. But maybe it would work for yours. stackoverflow.com/questions/71...
Get URL from Open dialog of standard Swift document-based application
I am trying to extract the URL of the document a user has selected in the default "Open" dialogue of my document based macOS application. I understand, a fileWrapper is passed to the init
stackoverflow.com
June 25, 2025 at 8:58 PM
No. I have feedback open about this (and would suggest you do the same.)
June 25, 2025 at 8:57 PM
Reposted by Colin Cornaby
🏆 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. 📖
June 10, 2025 at 4:10 PM
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.
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…
www.colincornaby.me
June 15, 2025 at 2:01 AM
Deeply disappointed Apple didn't close out their WWDC keynote with "We Are Apple" youtube.com/watch?v=nbJy0O4UFSM
Tech : We Are Apple (Leading The Way)
YouTube video by Alfred DiBlasi
youtube.com
June 14, 2025 at 5:18 AM
After I saw Steve Buscemi I checked on Twitter and saw people were taking photographs of him at the Starbucks down the street. He had just been sitting and trying to enjoy his coffee. So I'm guessing it might have been a post why-can't-I-just-drink-coffee-in-peace elevator ride.
June 14, 2025 at 2:17 AM
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.
Right folks. Feeling rather down at the moment so bringing back an oldie

Please Quote this with your most minor celebrity interaction
June 14, 2025 at 2:14 AM
Reposted by Colin Cornaby
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...
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.
www.wired.com
June 12, 2025 at 10:12 AM
Reposted by Colin Cornaby
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?
June 10, 2025 at 9:17 PM
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.
June 9, 2025 at 5:19 PM