Fusion OS is a Open Source Operating System, mainly licensed under the MPL 1.1. Parts of it are licensed upder the GNU GPL or other open source licenses. Fusion OS is based on the ReactOS project, and we contribute any bugs found in ReactOS back to them
The Banana Kernel is an open-source pedagogical operating system intended to provide useful means for teaching basic OS concepts, with the possibility of interaction with external modules developed by the teacher or student.
The CK 64-Bit Kernel Operating System
This project is a implementation of layers. Use Virtual machines & virtual adapters alike an onion! Another operating solution instead of Microsoft Windows Server operating system. It is to be used via remote controlling. The special new "Cktool32" will make it easy to handle *Ck64Krnl*.
A Debian / Knoppix based Linux for Newbies