illumos

Illumos is an open-source operating system based on the Solaris operating system, developed by Sun Microsystems. It provides a platform for servers and is known for its stability, security features, and advanced capabilities such as support for virtualization and advanced file systems. Illumos serves as the foundation for various other operating systems, often used in enterprise environments. Its development is driven by a community, and it aims to provide a robust alternative for users who require high performance and reliability in their computing tasks.