How do you handle authentication in Next.js?

Thank you for posing such a key question, especially in today's digital landscape where security and efficient user management are paramount. In my experience, particularly with leading high-stakes projects at renowned tech firms, I've found that implementing a robust and scalable authentication system in a Next.js application demands a multifaceted approach. Let me walk you through my strategy, which I believe aligns well with industry best practices while being adaptable to various project scales. Firstly, when tackling authentication in Next.js, my go-to solution often involves leveraging NextAuth.js—a library designed specifically for Next.js applications. The reason is its ease of integration, security features, and extensive support for numerous OAuth providers, including Google, Facebook, and GitHub, among others. It abstracts away the complexities, providing a straightforward yet secure authentication mechanism...