15:I[981,["658","static/chunks/658-a698693f56d0116a.js","183","static/chunks/183-6beeeb801c274aaa.js","474","static/chunks/app/%5Btype%5D/layout-631c4730b83c8223.js"],"Posts"] 16:T64a,Hey HN! We forked styled-components after it entered maintenance mode because our production apps (and many others) can't migrate overnight.

Backstory: We submitted [PR #4332](https://github.com/styled-components/styled-components/pull/...) to styled-components in July 2024 with React 18 optimizations. When maintenance mode was announced, we turned that PR into this fork.

What we fixed: - Added React 18's useInsertionEffect - Rewrote streaming SSR for React 19 - Replaced ES5 output with modern JS - Optimized array operations with native flatMap - Fixed Next.js App Router to work without 50+ lines of boilerplate

Linear tested it and saw 40% faster initial renders with zero code changes.

How to try it: npm install @sanity/styled-components@npm:styled-components

Or for React 19: npm install @sanity/css-in-js@npm:styled-components

Benchmark tool to test yourself: https://css-in-js-benchmarks.sanity.dev/

We named it "last-resort" because that's what it is. We're not trying to maintain styled-components long-term - we're actually migrating to vanilla-extract ourselves. This is just a performance bridge while teams migrate properly.

The React team recommends moving away from runtime CSS injection. We agree. But migrations take time, and production apps need to ship today.

EnvX: Agentize Everything with Agentic AI

NPM Security Collapsed Thanks to a 2FA Exploit

Mistral's Three Founders Become First AI Billionaires in France

Firm Inflation, Soft Jobs Data Pull Fed in Opposing Directions

Show HN: Forked styled-components with optimizations (40% faster for Linear)

Using AI to Augment, Not Automate Your Writing

Sprint Corporation and T-Mobile USA, Inc. vs. Federal Communications Commission [pdf]

Analyst Matthew Dowd loses his MSNBC job following his Charlie Kirk commentary

Show HN: Roast my website for my app game

Meta-abstraction in the physical and social sciences (2021)

'robber bees' invade B.C. apiarist's shop in attempted honey heist

Trends in LLM-Generated Citations on ArXiv

Facial recognition technology fails to match on Charlie Kirk person of interest

The Evolution of Logical Replication in PostgreSQL

DOOMscroll

BBC infrastructure response during and following 9/11

Universal Systems Language for Preventative Systems Engineering [pdf]

3D-printed superconductor achieves record performance with soft matter approach

Rapid Application Development [Wikipedia]

Nvidia Is a National Security Risk

New video at UFO hearing appears to show missile striking and bouncing off orb

Every Keystroke You Make: A Tech-Law Measurement and Analysis of Event Listeners

NASA bars Chinese citizens from its facilities, networks

Over the last two years, the sea level has dropped by 3 mm

Candidozyma Auris

Walmart's bet on AI depends on getting employees to use it

Reality Is Ruining the Humanoid Robot Hype

Show HN: Historian – bridge from InfluxDB 1.x/2.x to 3.0 with Parquet and DuckDB

The Evil Genius Who Invented Propaganda

MotoE, electric bike world championship, going on hiatus due to lack of interest

Ask HN: How do you stay on top of new research?

Comments