Fernando Romiti

Wading Through AI episode 2 is now up! In it, @DemetriSpanos and I discuss the recent Anthropic announcement about building a C compiler with "parallel Claudes", and how to properly assess AI announcements in general.

Vibecoders are seriously hardcore this one got a tattoo of every single app they finished!

We're hiring an Open Source Engineer! 🦀 Build features, review PRs, shape how contributors engage with Zed. Interesting problems, Rust codebase, small team, fully remote. Your work ships in days and users notice. Know someone? Are you someone? 👀 zed.dev/jobs/open-sour…

Very often I want to temporarily disable a piece of code. I comment it out, but then I'm faced with a problem that since the code is never compiled it gets "stale". Some functions it uses may have changed and it is never type checked. So the next time I enable it, it doesn't compile and I spent a lot of time fixing it. The solution I came up with so far is to "comment out" the code with the runtime `if (0)`. The code will never be executed, the optimizer will very like eliminate the code entirely, but before doing so the compiler will type check it, and will force me to fix it on the spot.

Ever wondered what Cursor's Agent would feel like if it weren't running in Electron? You don't have to wonder anymore!

Running the oldest browser (WorldWideWeb from @CERN) in the newest browser (@ladybirdbrowser) 🤓

themes are art. editing JSON files to make them? not exactly a vibe. Learn why theming is hard to get right, and why we built the Zed Theme Builder: zed.dev/blog/theme-bui… then go make something beautiful ✨

I created a proxy server in Swift to connect Xcode Code Assistant to Copilot available models (works for both individual and enterprise accounts) github.com/mobile-ar/xcod… #Swift #Xcode #CodeAssistant #Copilot

🤤🤤🤤

Google's corpo illustrations have been bad for a while, but this is a new low.

we vibed so hard we had to delete the repo

forget all liquid glass, reflective chrome, and aquarium uis… here’s my favorite one: dieter rams ui. pure beauty. put the sound on, it’s so satisfying…

I didn't have $1 million for a Game Awards Trailer so I'm posting my ASCII 3D RPG game here instead for free!

Here's a little unscientific chart showing the compile/run times of a "hello world" program in different languages. I used single-core, containerized sandboxes on an ancient CPU, so the exact times aren't very interesting, but relative timings are.

⚙️ Swift Configuration 1.0 is here! 🎉 No more juggling environment variables, config files, and command-line flags separately. One unified, type-safe API to read configuration from any source, and swap providers without refactoring your code. More here... swift.org/blog/swift-con…

you may not like this, but this is what peak male performance looks like #ad

🎉 10 years of open source Swift! A decade ago today, we opened Swift to the world with a simple blog post: swift.org/blog/welcome What's grown since—thanks to an incredible community of contributors—has been extraordinary. Here's to the next ten years. 🧡

GitHub 2025

UIKit now supports automatic observation tracking, making it easier to share data between UIKit and integrated SwiftUI components. I wrote a post looking into how this works on iOS 26 and iOS 18: nilcoalescing.com/blog/Automatic…

Ripgrep? Not on our watch! We rewrote Zed’s project search so your first match shows up in milliseconds... not ages like before 😵‍💫 zed.dev/blog/nerd-snip…