Guillermo Rauch CEO and Founder of React has a close relationship with Vercel and the React core team at Meta, which is accelerating mutual goals and supporting open-source projects. Sebastian Markbåge, who will join Vercel next month, still provides leadership on the React core team and helps maintain the direction of React. Vercel will continue to work on adopting React 18 and React Server Components into Next.js, contributing to future React working groups, and investing in other open-source software. The collaboration between Vercel and Sebastian is expected to be beneficial for both parties, with Vercel aiming to "Make the Web Faster" through its mission.