Yeah, I saw that, this is based on newer storport and can probably build only for newer windows. It looks also very much overengineered and corporatey code 😉 Quite helpful as a reference
There is also another copy https://github.com/JoeHsu092015/Windows-NVMe-driver.git
And archives of the mailing list where they were developing the driver https://lists.openfabrics.org/pipermail/nvmewin/