Scalable, portable, lightweight operating system.
"Personalities" provide high-level support for operating environments, utilising virtualisation where available.
Lowest-level components are native (i.e., interface directly with the kernel, without the aid of an existing runtime); various supported kernels (Linux, FreeBSD, NetBSD, XNU).
Higher-level components provide a language-agnostic OOP interface (via COM interfaces)
Aspects inspired by NeXTSTEP, Taligent, Workplace OS, NTOS, BeOS