Using Next.js as our case study (given its dominant market shar) we’ll explore how fullstack frameworks are reshaping backend development. We'll dive deep into the trade-offs of a fullstack deployment strategy, examining both the rapid iteration benefits and the hidden pitfalls such as tight coupling, scaling challenges, and testing complexities. Additionally, we’ll discuss strategies to mitigate these risks and highlight emerging solutions (like pikku.dev) designed to reconcile developer agility with robust, maintainable backend architectures.