CoreOS is an open-source lightweight operating system based on the Linux kernel and designed for providing infrastructure to clustered deployments, while focusing on automation, ease. Developed by CoreOS, Inc
License: Free
CoreOS is primarily designed for containerized applications and cloud environments, focusing on performance and security, while Xubuntu offers a user-friendly experience for general-purpose desktop use with a more traditional interface. The choice between them depends on whether you need a system for running containers or a versatile desktop operating system.