Zuse is a utility library included with the kernel at /sys/zuse.hoon in the %base desk. Zuse contains a large number of useful functions, most prominently those relating to cryptography and HTML/JSON parsing/printing.
Zuse is the farthest downstream component of the kernel in terms of dependency, so its version number is used to represent the version of the kernel as a whole.
Further Reading
- Zuse reference: Developer documentation of various functions in
zuse.hoon, particularly those relating to JSON.