Reid Burke

Kenneth Skovhus:

The client went from injecting hundreds of CSS rules during a navigation to zero. Arguably the more valuable change, though, is that styling now has much clearer boundaries at Linear. Components have explicit styling contracts, precedence is deterministic, and many patterns that used to depend on convention or the cascade are now enforced by tooling.

I wrote about StyleX last year and maintained a very similar atomic CSS system at Yahoo. Linear just finished a 1,000-PR migration onto it, in part to help agents write UI at scale.

Beware the pitfall of choosing large API surfaces:

styled-components made this a particularly difficult migration to automate because it gives you a Turing-complete language, the full power of CSS, and a completely open API. There are countless ways to express the same intent, and at the time, it was uncomfortably easy for agents to output something that looked correct but wasn’t.

What I like about StyleX is its minimal API surface. Contrast to Panda CSS which provides a large API surface and countless ways to express the same intent. Simplicity wins.

Rob Pruzan:

terminal-code combines code-server (VS Code in the browser) and terminal-browser (a browser in the terminal) to bring VS Code to the terminal.

Works in cmux which is powered by Ghostty.

Ben Nassi, Etay Iluz, Ofek Vayner, Or Cohen, Dudi Nassi, Boris Zadov, and Yuval Elovici:

We were able to recover secret keys from non-compromised devices using video footage of their power LED obtained by commercial video cameras.

In this paper, we present video-based cryptanalysis, a new method used to recover secret keys from a device by analyzing video footage of a device’s power LED. We show that cryptographic computations performed by the CPU change the power consumption of the device which affects the brightness of the device’s power LED.

This is done by obtaining video footage of a device’s power LED (in which the frame is filled with the power LED) and exploiting the video camera’s rolling shutter to increase the sampling rate by three orders of magnitude from the FPS rate (60 measurements per second) to the rolling shutter speed (60K measurements per second in the iPhone 13 Pro Max).

Via Sam Bent. They recovered a 256-bit ECDSA key from a smart card reader 16 meters away, through a window, with a hijacked security camera — no malware, no contact. _SiCk pointed at an older paper in the same neighborhood: PowerHammer (2018), malware that leaks data off an air-gapped machine by modulating CPU load onto the power line.

Via X

Researchers pulled a 256-bit encryption key out of a device by filming its power LED.

The status light on a smart card reader flickers in sync with the chip's power draw, and that power draw leaks the key. They recovered a full ECDSA key from 16 meters away, through a window,…

— Sam Bent (@DoingFedTime) August 17, 2026

That's bad, this is worse, and older.https://t.co/qReH1rIi69

— _SiCk (@encrypted_past) August 18, 2026

Andrew Côté:

So then why would Terafab need a Free Electron Laser, and why wouldn’t they just use what ASML does currently, laser-tin droplet ablation? To answer this we should start at the beginning: the fundamental physics of semiconductor photolithography.

Laser-tin droplet ablation has low efficiency, requires one light source per scanner, and yield quality is limited by available photon power:

The last one is a real doozy – as an example, for Intel chips i5, i7 and i9 all come off the same silicon wafers using the same masks, the difference is in the statistical error rates induced by limited or irregular photon power during the masking process.

EUV light contributes ~40% of overall fab costs. Using an alternative light source can reduce the EUV cost by 50% which would contribute to a 20% reduction in overall fab costs. And yields would be much better.