SwiftUI List row height animation is broken by design... — and most fixes just avoid the problem. This deep-dive shows how to actually solve it: custom Layout, state machine decoupling, and animatable spacing — all native SwiftUI, no UIKit.show more

My biggest problem with SwiftUI right now is how... terribly under-performant it is. Apple’s most powerful iOS device ever, powered by the cutting-edge M4 chip, can’t do this layout animation without horrible choppiness and hangs.show more

In SwiftUI there is now a 0.2s delay before... touches are shown in List, making the interaction feel broken. This delay is not there when the list is not scrollable. This affects *all* scrollable lists, and *all* navigation / buttons inside those lists (try it in your app too).show more

I learned this the hard way: do NOT use... SwiftUI if you want your app to look and feel amazing. At least when coding with AI. (sorry, Apple colleagues reading this 😅) I'm sharing my process vibe coding this calorie tracker. I get a lot of questions about the fluid transition in the video. Here's the whole story. Initially, Claude built the grid with SwiftUI. It was quick and easy, and looked good! But the transition to the day view was a boring navigation push/pop. No fun. I wanted something custom. I asked Claude to make it a fluid transition that remaps the food tiles from their source to destination positions. All hell broke loose. Claude tried a bunch of horrible things. Initially it used matched geometry effects, which worked OK but didn't lend themselves well to gesture-driven animations. So it resorted to SwiftUI preference keys + geometry readers to figure out the source and destination positions and calculate the interpolated position based on gesture progress, coordinating across grid and day views. But this meant it had to write a custom layout because it couldn't reposition tiles inside the native SwiftUI grid. And it had to do an awkward handoff between views, which always created ugly pops or jumps. And don't get me started on trying to put it on a bouncy spring, that only made the math 10x buggier. Fortunately, Claude Fable was smart enough to see that this was becoming a disaster (and discover most of the issues itself, in the simulator), so it pivoted away from SwiftUI. Opus might not be so wise, so you'll have to pay attention and intervene. Ultimately, it rewrote it in plain UIKit and everything turned out great. After that, we moved from 2D images to 3D assets, which introduced a new set of performance challenges and yet another rewrite to a single Metal layer, which is what you see below. I can write more about the 2D-to-3D saga if anyone's interested. If I were to do it again, I'd just say "Don't use SwiftUI" from the very first prompt, and save a few hours of headaches. SwiftUI can be amazing for a human iterating directly in code. But agents don't benefit from any of its advantages. Plus, agents have seen decades of UIKit training data, so they're great at writing it, and it's far more flexible. Here's hoping we see more agent-friendly iterations of SwiftUI in the future. Till then, I'm probably going to avoid it.show more

The #1 AI 3D Model Generator just got a... game-changing upgrade — and anyone can use it. No 3D design experience? No problem. From game assets to product design — this tool does it all. 👇🧵show more

Interactive SVG Animations launches in full on December 27th!... This course is a super deep dive into all things SVGs, from its syntax to its animation primitives—and more! No previous animation experience required, just a bit of HTML and CSS.show more

It's hard not to add fuel to the "is... SwiftUI production-ready" fire when this is the state of the "best way to build an app" 6 years after the framework was released... 🙃 ~30 lines of (admittedly sloppy) but simple code, unusable on iOS 26. Oh! And it works just fine on 18 🫠show more

MiaoYan is a lightweight, native macOS Markdown editor for... writing and notes — one of my open-source macOS projects. It just shipped its biggest update to date, introducing Split View for side-by-side Markdown editing and live preview, with smooth bidirectional scroll sync. This release also brings a full visual refinement, layout cycling between sidebar, list, and focus modes, faster startup with native window animations, and broad performance improvements across editing, preview, and export. Built entirely in Swift, not Electron. MiaoYan is local-first, requires no account, collects no telemetry, and avoids AI features by design. I built it for clean Markdown, performance, and a calm writing environment.show more

SplitPaneKit This is something I've wanted to componentize for... a while. We've seen this pattern appear in a few apps now, I even use it at Abode. It has a couple "gotcha" moments with performance and optimisation while animating separate or child views with the drag and translation of the split views, handling breakpoints etc, I thought I'd put it into a nice package. I actually made quite a few optimisations from how I handle this with Abode in this package. So might need to implement it over there😅 As before, right now its UIKit only, but SwiftUI host will likely come over the next few days as I make improvements and final changes to the initial API from feedback. - Draggable split-pane interface - Custom breakpoints or built-in presets - Scroll view integration - drag from content or handle - Coordinated animations with pan-effecting views - UIKitshow more

$100k+ brands don’t guess how to design static ads... they follow a repeatable layout system contrast hierarchy and message clarity so the ad explains itself in under a second most static ads fail because they look generic this guide breaks down how top brands structure visuals to feel premium modern and trustworthy no design theory just frameworks you can reuse for every creative i turned the full system into a short guide rt + comment “static” and i’ll send it (follow for dm)show more

This animation shows how a uniform grid of points... is deformed by a flow matching model. The visualization highlights how the learned flow warps the underlying space—stretching, compressing, and bending it—to transform one probability distribution into another.show more

1/ Public blockchains are transparent by design, which is... great for trust but creates major challenges for sensitive applications like AI, DeFi, and secure data sharing. Without strong privacy guarantees, institutions avoid blockchains, DeFi traders get front-run, and private machine learning models cannot be deployed securely. Arcium pioneers Privacy 2.0, enabling secure, collaborative encrypted computation directly on-chain. In this deep dive, we will explore how Arcium works and why Privacy 2.0 is a critical evolution in blockchain privacy. ☂️🧵↓show more

🎙️ DATAGRAM DEPIN DEEP DIVE: EP18 In the next... episode of Datagram DePIN Deep Dive, our X Space series hosted by CEO Jason Brink aka BitBender, we’re joined by All-Access (AAA)'s founders: Iqbal Ameer and Marv. All-Access is reimagining the entertainment industry by tokenizing festival IPs and building an AI-enabled ecosystem powered by fans. We’ll dive into how All-Access is shifting the economics of fan–creator relationships by integrating AI, Web3, and DeFAI to create a transparent, data-sovereign ecosystem, while also exploring how it connects with Datagram’s vision for decentralized, real-time infrastructure. Tune in: 🗓️ Friday, Sept 19 | 2PM UTC 📍 Live on Xshow more

sonner by Emil Kowalski is already one of the... most used toast libs in the React ecosystem. and it actually has this problem as well. a while back I wrote about preventing duplicate toasts by giving them an id. same action, same id → update the existing toast. no stacking. no spam. just clean feedback. tiny API detail. huge UX upgrade.show more

Lateral movement with volleyball players. Is this drill going... to save the whales and generate world peace? No. Does it require coordination and rhythm? Yes. Sometimes we can just train and sometimes we can just post videos of training without the chatGPT “one exercise to solve all your problems” narrative.show more

The latest deep strike hit Angstrem microelectronics plant near... Moscow. Key supplier to 18 critical defense factories. And more to that: Moscow Oblast is Russia’s most heavily defended area. This wasn’t a lucky hit. It shows how vulnerable Russia’s defense industry really is.show more

This year’s #WorldDesignDay theme by the International Council of... Design, “Is it kind?”, is all about reminding designers to add kindness to their project checklist somewhere between mood board and deadline. Here’s how your agency can make more welcoming designs for all 🧵show more

This is a good clip that shows a few... layouts. I'm pretty happy with this, maybe the slide layout could be a bit different and I'm curious how it will alternate between camera cuts. That's all for now, will get Claude to do a full render & report back later.show more

Incredible. I’m honestly still trying to process how good... this looks. This entire animation was created from just a single prompt in Seedance 2.0, and it only took a few minutes. The visual quality, the sound design, the pacing — everything feels polished and intentional. It genuinely doesn’t look like something generated by AI. It feels like a real anime scene. Anya Forger looks truly furious. The expressions, the weight behind the movements, the raw intensity — it all feels alive. It’s the kind of scene that makes you forget how it was made and just enjoy what you’re watching.show more

How to actually get the most out of Codex... instead of bookmarking another great guide you’ll never open again: We turned this article into an interactive workbench. Before prompting Codex, open the workbench, choose your task type, and check whether you’re using the right Codex capabilities. Built by Codex inside Open Design. If you want the workbench, reply “Open Design” below and I’ll send it to you.show more

This video really moves me because it shows that... he's not just there to put on a show and make money... he actually stopped, worried, and checked if anything was wrong Chan is VERY thoughtful and cautious with the fans and the members he deserves all the love in the world.show more