55% less server-side render time from a styling architecture change. The boring frontend choices show up on the infra bill too.
Does CSS modules help at a lower scale for performance improvement & why didn't they use tailwind?
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They are literally in a death spiral and regularly down, together with NPM, and they are dealing with some CSS shit. Holy fack.
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xitter.cf/github/status/21111560… 55% أقل في server render نتيجة قوية، لكن الدرس الإداري أهم: التحسين جه من تغيير معماري محدد وقابل للقياس، مش «نضيف AI». أي برنامج تحول لازم يربط كل تغيير بـbaseline وmetric وrollback plan؛ غير كده النجاح رأي.
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CSS-in-JS, CSS Modules and <name undecided> (working on it, pretty happy with the results so far). Just not sure if it should be written in TS or Rust 🤔
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GitHub’s CSS migration is a good read for the rollout alone: component by component, visual regression tests, and feature flags all the way through
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GitHub 花了快三年,把全站样式从 CSS-in-JS 换成了 CSS Modules 最难的一步是清掉几千个老写法 sx 人工阶段:8 个工程师轮流干,6 个月改了 6419 个 AI 阶段:2 个工程师加一堆 Copilot Agent,3 周把剩下的 895 个清零 干完之后,组件库的服务端渲染时间少了 55%
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