Monado is an open source XR runtime delivering immersive experiences such as VR and AR on on mobile, PC/desktop, and any other device
(because gosh darn people come up with a lot of weird hardware).
Monado aims to be a complete and conforming implementation
of the OpenXR API made by Khronos.
The project currently is being developed for GNU/Linux
and aims to support other operating systems in the near future.
"Monado" has no specific meaning and is just a name.