Curated for Sandeep
Four reads from the past day: CSS features headed for Interop 2027, a detailed log of an agent-built browser game, a Rust port of the TypeScript compiler, and why accessibility needs its own support data.
Open full edition ↗Frontend engineering
Josh W. Comeau walks through the ten CSS features he voted for in Mozilla's Interop 2027 ranking. They run from CSS functions and corner-shape to reading-flow, interpolate-size and scroll-state container queries. For each one he shows current browser support and example code, and he points out which can already be used as progressive enhancements.
Josh W. Comeau · Josh W. Comeau
Published October 20, 2026
Frontend engineering
In this post about its own project, Cloudflare announces tsrs. It is an experimental Rust port of the TypeScript compiler, built with VoidZero, done in collaboration with the TypeScript team, and incubated in the Oxc toolchain. The post shares the team's early benchmarks and explains why Rust's WebAssembly story matters for running toolchains in sandboxes and browsers.
Boshen Chen, Dimitri Mitropoulos and Christoph Nakazawa · Cloudflare Blog
Published October 20, 2026
Design & product
Eric Bailey boosts the Accessibility Compat Data project, which aims to publish machine-parsable assistive technology support data. He describes the absence of any Baseline or caniuse for accessibility as a long-standing platform gap. He also describes an LLM confidently spreading an unsupported ARIA attribute across a project, and asks readers to help fund the effort.
Eric Bailey · Eric Bailey
Published October 20, 2026
The deeper read · AI & tools
One piece worth making room for.
AI & tools
Simon Willison documents twelve iterations of Battle Drones, a browser-based Command & Conquer style strategy game built mostly through prompts to Claude Code, with links to prompts and transcripts. He covers the jump from a dull prototype to a fun game, a 3D port to three.js, LLM-versus-LLM agent battles, and multiplayer over audio and then a small WebSocket relay.
Simon Willison · Simon Willison’s Weblog
Published October 20, 2026