web-component-design

To build a cross-framework UI component library, you need to apply shared composition patterns like compound components and slots while adapting API designs for React, Vue, and Svelte. This ensures UI consistency and reduces code duplication across framework boundaries.

Handling CSS-in-JS for a shared design system involves comparing approaches like Tailwind, CSS Modules, styled-components, Emotion, and Vanilla Extract. The best choice applies the framework-agnostic styling method that meets your project's specific maintainability and architectural goals.

Compound components and render props work by establishing a predictable component composition pattern that enables flexible, maintainable UIs. In cross-framework development, these patterns translate into framework-specific implementations like render props in React and scoped slots in Vue and Svelte.

You can use polymorphic APIs and forwardRef to design robust component interfaces for cross-project reuse. Implementing accessible defaults alongside these patterns ensures your components maintain predictable behavior and prop forwarding when integrated into different React, Vue, or Svelte applications.

Refactoring legacy components into modern patterns requires framework-specific implementations to correctly apply composition and styling. While the underlying design system architecture remains shared, the actual code structure must adapt to the specific APIs of React, Vue, or Svelte.

You should not use a cross-framework component architecture when a project is tightly coupled to a single framework without interoperability requirements. If maintaining shared abstractions introduces unnecessary complexity for your specific team scale, building native components directly is more efficient.