The GNU Boot people actually sent me a cease and desist email, citing trademark infringement. Amazing.
Despite the original site clearly stating that it's unofficial. I literally made it to help them. You know, to help them use newer Libreboot because they use old Libreboot and even older coreboot.
Anyway, I complied with their polite request and have renamed the project to non-GeNUine Boot. The release archive is re-compiling.
https://notgnuboot.vimuser.org/news/nongenuineboot20230717.html
Personally, I like the new name better.