Seb Jachec
@sebj.me
Building a calendar @daybridge.com, previously Dyson
📍 South West England
🐘 https://mastodon.social/@sebj
📍 South West England
🐘 https://mastodon.social/@sebj
Reposted by Seb Jachec
I built Light Touch, a full-featured iPod touch 2G emulator for Mac. Networking + Wayback Machine proxy, GLES/3D games support, a built-in app store via legacystore.app, rotation, screen capture, the works. Have fun github.com/samhenrigold...
September 26, 2026 at 5:50 PM
I built Light Touch, a full-featured iPod touch 2G emulator for Mac. Networking + Wayback Machine proxy, GLES/3D games support, a built-in app store via legacystore.app, rotation, screen capture, the works. Have fun github.com/samhenrigold...
Reposted by Seb Jachec
Hooray, Anthropic finally gave up!
September 18, 2026 at 6:38 PM
Hooray, Anthropic finally gave up!
Reposted by Seb Jachec
Oh wow, Xcode 27.2 has a new project file format (xcproj) that is standard JSON, and an open format:
I've been waiting for something like this for most of my career! 🎉
I've been waiting for something like this for most of my career! 🎉
GitHub - apple/xcode-project-format: A Swift library for reading, writing, and manipulating Xcode's JSON-based project.xcproj format.
A Swift library for reading, writing, and manipulating Xcode's JSON-based project.xcproj format. - apple/xcode-project-format
github.com
September 16, 2026 at 11:09 PM
Oh wow, Xcode 27.2 has a new project file format (xcproj) that is standard JSON, and an open format:
I've been waiting for something like this for most of my career! 🎉
I've been waiting for something like this for most of my career! 🎉
Reposted by Seb Jachec
GitHub still does not have Xcode 27 RC deployed to macOS runners, so despite my best efforts my app will not be ready for iOS 27 tomorrow. It is an honor to pay 10x the price of Linux runners for this world-class experience.
September 13, 2026 at 11:06 PM
GitHub still does not have Xcode 27 RC deployed to macOS runners, so despite my best efforts my app will not be ready for iOS 27 tomorrow. It is an honor to pay 10x the price of Linux runners for this world-class experience.
Reposted by Seb Jachec
For the last 2 years I have been tracking a generational change in the nature of software development, and I think I've finally decided where all of this turmoil is going to end up. It's good news, but not for everybody. https://seldo.com/posts/we-are-all-product-engineers-now/
We are all Product Engineers now | Seldo.com
Agents are eating the software development lifecycle from the bottom up — code generation already gone, review and ops following fast. What remains is figuring out what people actually want, which can't be automated or scaled. That job is called product engineering, it pays $240k, and nobody's training for it.
seldo.com
September 14, 2026 at 1:36 AM
For the last 2 years I have been tracking a generational change in the nature of software development, and I think I've finally decided where all of this turmoil is going to end up. It's good news, but not for everybody. https://seldo.com/posts/we-are-all-product-engineers-now/
Reposted by Seb Jachec
GPT-6 Astra saturated ARC-AGI-3, scoring 99.9% on a benchmark designed to test whether AI can learn how to solve unfamiliar interactive problems.
The notable part is the same model scored 62.7% with the standard harness.
A great example of how the harness increasingly matters as much as the model
The notable part is the same model scored 62.7% with the standard harness.
A great example of how the harness increasingly matters as much as the model
September 3, 2026 at 10:56 PM
GPT-6 Astra saturated ARC-AGI-3, scoring 99.9% on a benchmark designed to test whether AI can learn how to solve unfamiliar interactive problems.
The notable part is the same model scored 62.7% with the standard harness.
A great example of how the harness increasingly matters as much as the model
The notable part is the same model scored 62.7% with the standard harness.
A great example of how the harness increasingly matters as much as the model
Reposted by Seb Jachec
You've probably heard by now that SwiftUI has a fancy @State macro that lazily creates state, fixing a longstanding issue in the framework.
But what you may not know is that the laziness only kicks in for **private** state.
Get all the details here:
www.pointfree.co/episodes/ep3...
But what you may not know is that the laziness only kicks in for **private** state.
Get all the details here:
www.pointfree.co/episodes/ep3...
August 27, 2026 at 7:08 PM
You've probably heard by now that SwiftUI has a fancy @State macro that lazily creates state, fixing a longstanding issue in the framework.
But what you may not know is that the laziness only kicks in for **private** state.
Get all the details here:
www.pointfree.co/episodes/ep3...
But what you may not know is that the laziness only kicks in for **private** state.
Get all the details here:
www.pointfree.co/episodes/ep3...
Reposted by Seb Jachec
Pro tip for folks working with Apple documentation: add ".md" to the end of a URL to get it as Markdown – much lighter to load, and also friendlier for agents. Example: developer.apple.com/documentatio...
developer.apple.com
August 31, 2026 at 6:08 PM
Pro tip for folks working with Apple documentation: add ".md" to the end of a URL to get it as Markdown – much lighter to load, and also friendlier for agents. Example: developer.apple.com/documentatio...
Reposted by Seb Jachec
Thinkin' a bit about today @joanwestenberg.com's recent essay on ethics for the modern world. www.joanwestenberg.com/p/neo-...
August 22, 2026 at 6:20 PM
Thinkin' a bit about today @joanwestenberg.com's recent essay on ethics for the modern world. www.joanwestenberg.com/p/neo-...
Reposted by Seb Jachec
Apple only took 24 hours to approve my iOS app update that crashed instantly on launch. Such a blessing to have that extra level of reliability and security that only a manual review process can provide 🙏
July 29, 2026 at 11:12 AM
Apple only took 24 hours to approve my iOS app update that crashed instantly on launch. Such a blessing to have that extra level of reliability and security that only a manual review process can provide 🙏
Reposted by Seb Jachec
wild stuff, they basically said "solve this 30-year-old math problem, make no mistakes"
Here are 58 words of prompts to GPT-5.6 Pro that got the model to discover that the long-standing Dinitz-Garg-Goemans conjecture is false.
Increasingly, prompt crafting is over-rated, ask for what you want. (Which itself can be a hard problem)
Increasingly, prompt crafting is over-rated, ask for what you want. (Which itself can be a hard problem)
July 22, 2026 at 9:02 PM
wild stuff, they basically said "solve this 30-year-old math problem, make no mistakes"
Reposted by Seb Jachec
Aphera 1.0 is live! 🎉 Download and trial free (no CC required), or grab it now at launch pricing for 50% off for the next two weeks only.
We built Aphera to work with your images intentionally, without overwhelming, and to get your creative flow back. This is just the start!
aphera.co
We built Aphera to work with your images intentionally, without overwhelming, and to get your creative flow back. This is just the start!
aphera.co
Aphera • A Mac photo editor
A speedy, intentional, and modern RAW photo editor built natively for Mac.
aphera.co
July 14, 2026 at 4:26 PM
Aphera 1.0 is live! 🎉 Download and trial free (no CC required), or grab it now at launch pricing for 50% off for the next two weeks only.
We built Aphera to work with your images intentionally, without overwhelming, and to get your creative flow back. This is just the start!
aphera.co
We built Aphera to work with your images intentionally, without overwhelming, and to get your creative flow back. This is just the start!
aphera.co
Reposted by Seb Jachec
Reposted by Seb Jachec
So far the whole keynote is "here is every detail you've yelled at us about for the last year".
June 8, 2026 at 5:10 PM
So far the whole keynote is "here is every detail you've yelled at us about for the last year".
Reposted by Seb Jachec
We're excited to announce that after 18-months of development, Halide Mark III is now available!
www.lux.camera/halide-mark-...
www.lux.camera/halide-mark-...
Halide Mark III
We are excited to launch Halide Mark III a massive upgrade to our groundbreaking camera app. We developed Mark III with three goals.
1. The most beautiful photos that can come from an iPhone.
2. "B...
www.lux.camera
May 27, 2026 at 5:13 PM
We're excited to announce that after 18-months of development, Halide Mark III is now available!
www.lux.camera/halide-mark-...
www.lux.camera/halide-mark-...
Reposted by Seb Jachec
Finally made a small lib that helps me implement how I think about design tokens.
Try Design Book →
Read about it: meodai.github.io/design-book/...
Play with it: meodai.github.io/design-book/
Try Design Book →
Read about it: meodai.github.io/design-book/...
Play with it: meodai.github.io/design-book/
May 15, 2026 at 2:34 PM
Finally made a small lib that helps me implement how I think about design tokens.
Try Design Book →
Read about it: meodai.github.io/design-book/...
Play with it: meodai.github.io/design-book/
Try Design Book →
Read about it: meodai.github.io/design-book/...
Play with it: meodai.github.io/design-book/
Reposted by Seb Jachec
Introducing Indigo
A beautiful new app for Bluesky and Mastodon and the best way to experience both social networks together. It's tough keeping up with everyone when they're split across networks but Indigo brings them together for a seamless social experience.
apps.apple.com/us/app/indigo-...
A beautiful new app for Bluesky and Mastodon and the best way to experience both social networks together. It's tough keeping up with everyone when they're split across networks but Indigo brings them together for a seamless social experience.
apps.apple.com/us/app/indigo-...
May 12, 2026 at 2:03 PM
Introducing Indigo
A beautiful new app for Bluesky and Mastodon and the best way to experience both social networks together. It's tough keeping up with everyone when they're split across networks but Indigo brings them together for a seamless social experience.
apps.apple.com/us/app/indigo-...
A beautiful new app for Bluesky and Mastodon and the best way to experience both social networks together. It's tough keeping up with everyone when they're split across networks but Indigo brings them together for a seamless social experience.
apps.apple.com/us/app/indigo-...
Reposted by Seb Jachec
Nearly everyone I see online complaining about passkeys is a 1Password user. The Apple Passwords experience is so, so much smoother.
At least, for now. The 1Password folks are working on integrating into macOS more smoothly and natively. Browser extensions for credential management are a miss.
At least, for now. The 1Password folks are working on integrating into macOS more smoothly and natively. Browser extensions for credential management are a miss.
I haven’t put much effort into it, but I suspect it has to do with how sites handle failures/retries. 1password browser extension is often locked. Passkey fails first time, hopeless confusion/failure ensues.
All I really know is: it doesn’t work, and I’m sick of fighting it.
All I really know is: it doesn’t work, and I’m sick of fighting it.
May 2, 2026 at 11:54 PM
Nearly everyone I see online complaining about passkeys is a 1Password user. The Apple Passwords experience is so, so much smoother.
At least, for now. The 1Password folks are working on integrating into macOS more smoothly and natively. Browser extensions for credential management are a miss.
At least, for now. The 1Password folks are working on integrating into macOS more smoothly and natively. Browser extensions for credential management are a miss.
Reposted by Seb Jachec
pop a squat, this is a long one samhenri.gold/blog/2026041...
Thoughts and Feelings around Claude Design · Sam Henri Gold
Sam Henri Gold is a product design engineer building playful, useful software.
samhenri.gold
April 18, 2026 at 6:58 PM
pop a squat, this is a long one samhenri.gold/blog/2026041...
Reposted by Seb Jachec
If you're European, you now have a great and well-funded PDS in EU soil, governed by EU laws, run by awesome folks. Moving your account to Eurosky is easy, and you won't notice the difference afterwards. Please take a few minutes and do the jump 🇪🇺
What a day! Did we mention that today was the day we removed invites from Eurosky accounts? Anyone can create an account straight away.
April 16, 2026 at 3:55 PM
If you're European, you now have a great and well-funded PDS in EU soil, governed by EU laws, run by awesome folks. Moving your account to Eurosky is easy, and you won't notice the difference afterwards. Please take a few minutes and do the jump 🇪🇺
Reposted by Seb Jachec
This DJ set by Thomas Bangalter (Daft Punk) and Fred Again is *sublime* and I can already tell it’s going to be one of my most listened in 2026.
Enjoy it (and check the tracklist and notes from Fred Again in the comments because they make the video even better)
www.youtube.com/watch?v=gfF8...
Enjoy it (and check the tracklist and notes from Fred Again in the comments because they make the video even better)
www.youtube.com/watch?v=gfF8...
Fred again.. & Thomas Bangalter (USB002, Alexandra Palace, London 27 February 2026)
YouTube video by Fred again . .
www.youtube.com
March 29, 2026 at 6:07 PM
This DJ set by Thomas Bangalter (Daft Punk) and Fred Again is *sublime* and I can already tell it’s going to be one of my most listened in 2026.
Enjoy it (and check the tracklist and notes from Fred Again in the comments because they make the video even better)
www.youtube.com/watch?v=gfF8...
Enjoy it (and check the tracklist and notes from Fred Again in the comments because they make the video even better)
www.youtube.com/watch?v=gfF8...
Reposted by Seb Jachec
Lil Finder Guy is back on Apple's TikTok!
March 30, 2026 at 5:44 PM
Lil Finder Guy is back on Apple's TikTok!
Reposted by Seb Jachec
Google is now screwing with the 10 blue links in traditional search and rewriting headlines - including ours - to be the worst kind of slop. This sucks so bad www.theverge.com/tech/896490/...
March 20, 2026 at 3:04 PM
Google is now screwing with the 10 blue links in traditional search and rewriting headlines - including ours - to be the worst kind of slop. This sucks so bad www.theverge.com/tech/896490/...