Docker containers revolutionize application deployment by providing a consistent environment across various systems. Token-based authentication ensures secure access control in containerized apps. The Next.js framework enables server-side rendering and static site generation, enhancing performance. Swivel’s list of microservices demonstrates the flexibility of microservices architecture in Docker, allowing modular development. Third-party integration simplifies external service incorporation, while the Express.js backend framework efficiently handles APIs and server logic, making Docker an ideal choice for scalable, fast web applications.