A brief overview
Metodo is the dux kernel. It has the same goals and design philosophy as the entire dux system—primarily a simple design. Although metodo is designed to be portable, it currently runs exclusively on x86 systems.
The name metodo comes from the Italian word meaning method.
Dux and its original kernel were strongly tied. On August 2nd, 2009, after deciding that this was a poor design idea, we started development of the metodo kernel. The metodo kernel was heavily developed at a surprisingly fast pace until it was on-par with dux's original kernel. On August 23rd, 2009, the old dux kernel was removed, and metodo officially replaced it.
Metodo is a hybrid kernel. Non-essential drivers will run in userspace. The four access levels are, in order from least to most restrictive, the kernel, the kernel drivers, the userland drivers, and the userland.
Kernel access will be the highest access level. It will provide complete hardware access and the ability to do whatever you can imagine (and possibly more).
Kernel drivers will be at the second access level. They will have less access than the kernel, but enough to implement the "hardcore" drivers (graphics, for example).
User drivers are the third access level. They will have Basically userland access, but a few more syscalls.
The fourth, and lowest, access level is what userland is given. This is where all software that is not trusted by the kernel is ran.