Hey guys ! I'm currently working on modifying the Mac Pro's EFI to support booting from NVMe drives. The actual implementing isn't so hard if I don't run into any surprises. But it will take some as you get massive headaches from reading hex. I'll return here when I've found a safe way to flash the Mac Pro without bricking it, and I'll release the source code as well. Hope a lot of people are interested in this project I think it'll increase the Mac Pro's life span even more !