The Möbius operating system is an open source operating system for the IA-32 platform (Intel i386 and compatible). The authors focused the development on some very important points for a modern operating system. The main objectives of Möbius are: (1). Make it sufficiently extensible to make the development of new device drivers and technologies easier. (2). Keep the kernel as small and modular as possible. (3). Support existing applications whenever possible. (4). Stay easy to use enough to have a Mobius system installed and configured without having to learn anything.