Explore the process of building a Twitter UI using TypeScript across multiple UI libraries in this comprehensive video tutorial. Dive into the development of a single application using Qwik, React, and SolidJS with Mitosis, a tool for transpiling code between different frameworks. Gain insights into the Mitosis developer experience and learn how to navigate discrepancies in generated code. Follow along as meta-frameworks like Next.js, SolidStart, and QwikCity are added for server-side rendering and authentication. Witness the deployment attempts for each framework, including the challenges faced with Next.js. Compare the performance of Qwik and Solid applications using Lighthouse and first-load JavaScript metrics. Access provided GitHub repositories and links to further explore the project components and deployed applications.