Not quite. EFI will kill your program if it runs too long unless it disables a lot of the drives by exiting the boot environment. Additionally, a lot of the E

Not quite. EFI will kill your program if it runs too long unless it disables a lot of the drives by exiting the boot environment. Additionally, a lot of the EFI structures aren't intuitive or straightforward since they cover a lot of functionality, you'd still write a lot of code, probably more than the non-EFI variant.