From the link in README: > the concept is to modify the Python bytecode interpreter to sit directly on bare metal. It therefore acts as a kind of micro-kernel

From the link in README: > the concept is to modify the Python bytecode interpreter to sit directly on bare metal. It therefore acts as a kind of micro-kernel with the rest of the operating system written in Python. Looks like the C code is the (modified) Python VM. Whether it should be seen as part of the OS or as part of the (virtualized) hardware platform is a matter of convention.