Improving site performance by shipping more CSS - The GitHub Blog

kept by eddie sep 30

GitHub migrated its Primer design system and UI from CSS-in-JS to CSS Modules, eliminating sx props and achieving up to 22% server-side rendering speed gains.

Building a design system specced for engineers and agents—Martian Chronicles, Evil Martians’ team blog
Evil Martians built a design system for Currents using AI-assisted audits and OKLCH colors, making it readable by both engineers and AI agents.
also on #design-systems, #developer-tools
I've maintained Linaria for six years. Here's why I built something new — dx-styles blog
The author explains why, after six years maintaining Linaria, he created dx-styles as a zero‑runtime CSS‑in‑TS solution for design systems.
also on styled-components, #developer-tools
Kenneth Skovhus | Moving Linear from styled‑components to StyleX
Linear is migrating its React app from styled-components to StyleX for performance and stricter styling contracts, using a custom codemod and agent-assisted workflow.
also on styled-components, #developer-tools
How to Build Tile Patterns with CSS Grid
The article shows how to recreate Barcelona’s hydraulic tile floors using CSS Grid, demonstrating motif rotation, symmetrical shapes, subgrid alignment, and dynamic trigonometry‑driven layouts.
also on CSS, #developer-tools
GitHub - aidenybai/cnfast: Fast drop in replacement for `cn`
cnfast is a drop-in replacement for tailwind-merge that merges Tailwind classes 3.8x faster on average with byte-identical output.
also on CSS, #developer-tools