GitHub.com has fully moved off CSS-in-JS to CSS Modules, resulting in 55% less server-side render time and 25% faster component init. https://github.blog/engineering/architecture-optimization/improving-site-performance-by-shipping-more-css/
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github.blogImproving site performance by shipping more CSSHow we fully migrated github.com away from CSS-in-JS.
Yes but unfortunately many people still don’t recognise that the problem it was meant to solve is still relevant.
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