Rex is an open-source automation framework designed to streamline and simplify server and data center management. It offers a scripting-based approach to deployment, configuration, and orchestration of servers, making it easier for system administrators and DevOps engineers to automate tasks across heterogeneous environments. Rex supports a variety of platforms and provides flexibility with its modular structure, allowing users to write custom tasks or utilize existing modules shared by the community. The tool emphasizes ease of use with human-readable syntax, catering to both small and large-scale infrastructure needs.