James Coombs is a design engineer who migrated a large frontend from Material UI to a custom design system (Radix, Tailwind). Four CSS systems had to coexist during migration. Three approaches to it had already been considered and rejected before anyone tested the CSS layer.

Source: [Dev.to](https://dev.to/james-coombs/the-css-problem-nobody-thinks-is-solvable-10g)

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