Zero-runtime CSS-in-JS preprocessor for React. Transforms JSX styles to static CSS at build time.
TRIGGER WHEN:
- Writing/modifying Devup UI components (Box, Flex, Grid, Text, Button, etc.)
- Using styling APIs: css(), styled(), globalCss(), keyframes()
- Configuring devup.json theme (colors, typography)
- Setting up build plugins (Vite, Next.js, Webpack, Rsbuild, Bun)
- Debugging "Cannot run on the runtime" errors
- Working with responsive arrays or pseudo-selectors (_hover, _dark, etc.)
Software Development
