What are the benefits of using NGINX Unit?

NGINX Unit is a modern solution for managing web applications that emphasizes simplicity and flexibility, using JSON for configuration and an HTTP API for ease of interaction. Unlike traditional NGINX, which relies on more complex and less standardized configuration files, NGINX Unit offers a declarative model that simplifies common networking tasks like routing and security, making it particularly suitable for environments that leverage multiple programming languages. It allows for reconfiguration without restarting applications, supports polyglot development, and is quick to install and deploy, making it a compelling alternative to traditional methods such as PM2 or systemd. While it lacks some advanced features like complex routing rules and health checks, and is limited to Linux and MacOS, its design reflects a back-to-basics approach that is expected to evolve with regular updates. For those whose needs align with its current capabilities, NGINX Unit presents a lightweight and straightforward option for application deployment and management.