Tony Arnold

@tonyarnold
1.7K Followers
864 Following
5.2K Posts

Cocoa-wielding person-like-object.

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

GitHubhttps://github.com/tonyarnold
Twitterhttps://twitter.com/tonyarnold
Tony Arnold12h ago
Mac Virtual Display on Vision Pro is extremely cool, except for the bit where it does not ever pick an optimal spot for the virtual display to show up. Infuriating implementation - I need to move and resize the window every single time I connect to my Mac.
Tony Arnold19h ago
Brooke Vibber 6d ago

owning the libs

maintaining the libs

reviewing pull requests on the libs

setting up ci and fuzz tests for the libs

Tony Arnold1d ago
Chris Eidhof1d ago
I want to get better at using the LLMs. I made this thing that I always wanted to have: a page that quickly lets you find the right FormatStyle. The whole thing runs in wasm (warning: large binary) so it doesn't need a server component. Happy to take feedback. http://formatstyle.guide
FormatStyle Guide

Interactive guide to Swift Foundation FormatStyle APIs, with runnable browser examples, SwiftUI notes, and copyable code.

FormatStyle Guide
Tony Arnold3d ago

Gosh, the agent crowd are *obsessed* with terminal UIs.

I didn't spend my career building GUIs to drop back to the coding equivalent of a travel booking system TUI. Give me great host platform integration, keyboard navigation and thoughtful, joyful interactions over whatever the hell all of these CLIs are any day of the week.

This tech is all so immature/infantile right now.

Tony Arnold3d ago
I’m sorely tempted to write a native, dev-focused agent orchestration UI, but it seems pointless when OpenAI or Anthropic’ll just take whatever works or is good and roll it into their own non-native, cross platform apps.
Tony Arnold5d ago
Well, shit - not sure this is good news for the CI ecosystem: Cirrus Labs is joining OpenAI - https://cirruslabs.org
Cirrus Labs to join OpenAI

Cirrus Labs announces an agreement to join OpenAI as part of the Agent Infrastructure team.

Tony ArnoldApr 10
Max LeibmanApr 10
Low Code ➡️ No Code ➡️ Vibe Code ➡️ Agentic Code ➡️ No Coders ➡️ Lots of Code ➡️ Oh My God So Much Shitty Code ➡️ Where Are the Coders? ➡️ This Coding Agent costs WHAT now? ➡️ Just Regular Code Again
Tony ArnoldApr 8
Joe Fabisevich Apr 8

LLMs are the future of software engineering. No, markdown is the future of software engineering. Wait, actually gstack is the future of software engineering.

No, good ideas and hard work are the future of software engineering, same as they've always been.

Tony ArnoldApr 8
Stephen DarlingtonApr 8
I, too, don't release software I've written because it's too good. Its beauty would make you cry, and we can't have that. https://techcrunch.com/2026/04/07/anthropic-mythos-ai-model-preview-security/
Anthropic debuts preview of powerful new AI model Mythos in new cybersecurity initiative | TechCrunch

The new model will be used by a small number of high-profile companies to engage in defensive cybersecurity work.

TechCrunch
Tony ArnoldApr 8
I am quite relieved that the US doesn't seem to be bombing anyone's infrastructure or cities, but can we still get together and bomb some data centres?