For new projects, we typically use Vite — which offers faster builds and hot module replacement than Create React App. For existing CRA projects, we can migrate to Vite or maintain the current setup based on your preferences. We also configure custom Webpack or esbuild when specific optimizations are required.

We implement React Hook Form for performant form handling with minimal re-renders. Zod or Yup schemas define validation rules with TypeScript inference. Complex multi-step forms use useForm Context or custom reducer logic for state persistence.

Yes. We write unit tests with React Testing Library and Jest — testing component behavior rather than implementation details. Integration tests verify component interactions. Critical user journeys are covered with end-to-end tests using Playwright or Cypress.