Although i have not been able to work with Sushy yet, it is the first library / package i have found that allows me to simulate redfish so i don't have to spend large amounts of money on different types of hardware.
There is a serious lack of hardware focusses software, so any and all solutions i have come across seem to be vendor specific or not maintained or used.
it would be a loss to the overal opensource and development community if this tool would join that list.