I assume it is based on or is inspired by this: https://github.com/TheMCHK/WindowsXPKg
Although I doubt that. Recommend using your own key on the system itself during installation (if you have one that is). I already had a key on the case I built my PCIe 1.0 AMD system into so I used that during install, and used the tool I linked from my drive to do a "phone activation", as I doubt online activation would've worked.