PostCSS is a tool to transform styles with JS plugins. By @sitnikcode and @evilmartians.

PostCSS is one of the most popular front-end tools with 80M downloads/month. Even if you don’t use it as a preprocessor, you still use it as a dependency in @Autoprefixer, @webpack or Create React App. Now we are collecting funds to release PostCSS 8.0 opencollective.com/postcss/
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We recommends following this guide for all PostCSS plugins to protect ecosystem from supply chain attacks
My new article is out! A systematic guide to releasing npm packages as safely as possible in 2026 (with a Skill to quickly apply the practices to your own open source projects). Not just “do X”, I cover real attacks and explain how each defense helps. evilmartians.com/chronicles/…
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We updated our "Writing PostCSS plugin" guide to force protection against supply chain attack postcss.org/docs/writing-a-p…
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The unsung heroes of our time. @43081j from the e18e.dev/ community cut 1 MB from caniuse-lite. With 700M installs per month, that saves around 700 TB of global internet traffic every month. github.com/browserslist/cani…
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Here is my post where I share how to create a perfect README.md for your open source project (sharing what I learned creating PostCSS, etc) evilmartians.com/chronicles/…
I met @andreysitnik (creator of PostCSS, autoprefixer, size-limit) at my first ever conference. His talk was "how to make your open source project popular". Having a good README (beautiful and useful) is key.
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Huge thanks to @atlas_cloud_ai for supporting our work with $100/month! 😍️ They are building a multimodal AI inference platform that gives developers a single API for video generation, image generation, and LLMs. atlascloud.ai/?utm_source=tw…
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Introducing the CSS Property Type Validator Stylelint plugin. @schalkneethling released the first beta that validates @​property registrations, custom property assignments, and var() usage in your linting workflow. #css #tools schalkneethling.com/posts/in…
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Celebrating my birthday today: 39. If you’d like to support my work (npm supply chain attack research and trying to fix social media with Slow Reader), I’d be truly grateful for a GitHub Sponsors donation. github.com/sponsors/ai/
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Oh wow, @amplify just sent me $50 through GitHub Sponsors. Huge thanks! Now I can get that screwdriver for the house that’s been sitting on my wishlist. github.com/sponsors/ai/
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Supply chain attacks can’t be solved with one silver bullet. They need a systemic approach. For every dev layer (not just npm, but CI, Docker, and your editor) ask 4 questions: 1. How can we reduce dependencies? 2. Isolation 3. Update control 4. Review Thread ↓
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PostCSS retweeted
Hey! I am open for contract or full-time work as a full-stack developer. I've worked on industrial software, real estate tech, and a visual website builder. I specialize in design systems, a11y, and UX. Previously maintained PostCSS, Rollup, and SVGO.
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Wow! Huge thanks to @elevenlabs for the $200/month sponsorship toward my work on open-source projects. github.com/sponsors/ai/
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Big contributor to my open source projects (like PostCSS) is look for job. Don’t miss it.
Hey! Looking for a full-stack job. Global remote. Contract or full-time. I build design tools and contribute to popular open-source projects. My CV: trysound.io/hire-me DM or email me at me@trysound.io
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CSSkit, a high-performance CSS toolchain written in Rust. Keith Cirkel’s project combines parsing, minification, linting, formatting, and LSP integration into one zero-config tool inspired by oxc. #css #tools csskit.rs
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Tholmad is a unique writing system for the constructed language Vorgath. The script is inspired by the seals of demons from the real medieval grimoire Ars Goetia (PostCSS version logos are based on these seals). youtube.com/watch?v=JBt9TXVo…
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PostCSS retweeted
PostCSS creator, @sitnikcode, shares how to make your open source popular. He also destroys the false idea that writing open source will make you famous, or that you should write open source to show your expertise. Plus, he explains how to avoid burnout when maintaining your products. evilmartians.com/chronicles/…
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PostCSS retweeted
Calling all frontend engineers. It's your time to become a Martian! We’re looking for a JS developer who respects CSS, UX, and design, and can work independently in a fully remote team. This is a great opportunity to join the team behind OSS tools like @PostCSS, Nano Stores, and OKLCH. You’ll also help solve exciting problems for devtool startups like bolt.new, Teleport, and many more. English fluency is required. Sound like you? Apply here: evilmartians.com/careers/fro…
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Huge thanks to @nuqs47ng for his support of my open source on GitHub github.com/sponsors/ai We all need a little Christmas miracle during the holidays.
I'm signing the Open Source Pledge, it's time to give back to the maintainers of the projects nuqs depends on. I just gave 2700€ ($3,212) to 18 maintainers & projects I use, love, and want to support. Happy Thanksgiving! 💖 nuqs.dev/blog/open-source-pl…
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