alt Hacker Newsinteresting stuff, never tried this specifically. you could try to adapt it to uefi too, edk2 is tricky to work with but not too hard to do it.
it might make it more easy for ppl to play with since most modern machines dont come with BIOS anymore.
uefi might trample more ram during its init but its not a lot of memory.
Good point! I originally went with Legacy BIOS because 16-bit boot support is historically enabled by default on the vast majority of target machines out there. It keeps the bootloader tiny and hardware access as direct as possible. However, as CSM is virtually dead on the newest hardware, adapting it to UEFI is the inevitable next step.