Aleksi Puttonen developed a StyleX integration example for Storybook, demonstrating how to document and style React components such as Button and Card using StyleX within the facebook/stylex repository. He configured Babel, ESLint, PostCSS, and Vite to support a robust component documentation environment, enabling teams to accelerate design-system adoption. In the polarsource/polar repository, Aleksi addressed a mobile Safari rendering issue by ensuring ChartContainer defaults to 100% width when unspecified, improving chart responsiveness on small screens. His work focused on establishing reusable, responsive patterns and aligning cross-repo user experience, leveraging TypeScript, JavaScript, and modern frontend development practices.