nanoresource is a minimal and efficient JavaScript resource manager. It simplifies managing asynchronous resource lifecycle, offering explicit open, close, and ready states. Ideal for handling file descriptors, database connections, or network sockets, it prevents common errors like use-after-close. Nanoresource provides a lightweight and predictable way to ensure resources are properly handled, enhancing code reliability and maintainability in Node.js applications. This approach promotes cleaner and more robust asynchronous programming.