In April 2025, Zac developed and exported a ClientOnly component for the TanStack/router repository, addressing server-side rendering challenges by ensuring content is rendered only after client-side JavaScript loads, thus preventing hydration errors and improving the client rendering flow. He also fixed broken documentation links in the TanStack/query React docs, restoring reliable navigation for users referencing examples and guides. His work involved JavaScript, TypeScript, and Markdown, demonstrating skills in front end development, documentation, and testing. Zac’s contributions focused on reducing runtime issues in SSR-enabled applications and enhancing the overall developer experience through improved documentation integrity and robust component design.