Compiling this EFI application is incredibly simple. All you need is a working rolling Linux distro.
First download and install gcc, gnu-efi.
sudo pacman -S gcc gnu-efi-libs cmake git
This should install all required packages that you will need to build.
Clone this repo.
git clone https://github.com/SamuelTulach/negativespoofer
Change directory to the repo root folder.
cd hwid
Build the application.
./scripts/build.sh
Now you should see hwid.efi in the build folder. Congrats!