Traditional username and password systems are often cumbersome, requiring users to remember complex passwords and developers to ensure secure implementation, which can increase the attack surface of a system and workload. Magic links, a passwordless authentication method, offer a streamlined alternative by sending users a link via email to authenticate, enhancing ease of use, security, speed, and mobile-friendliness. However, they require access to email and can be vulnerable if email security is compromised. Implementing magic links involves generating and validating time-sensitive tokens, which can be done manually using tools like Next.js, JWT for token creation, Nodemailer for email delivery, and secure token storage. Nonetheless, this process can be complex and prone to security risks, leading to the recommendation of services like Clerk, which simplify the implementation and management of magic links with pre-built solutions, better security, and a smoother user experience.