Hardest part is integrating this stuff into the original, OCS bound, graphics.library.
Ideally you'd just replace graphics.library with the one from aros (or use aros).
But the graphics.library design they came up with for aros was not optimised because pc's have fast cpu's and the ocs/ecs/aga driver is the bare minimum implementation and really slow too. It appears to be one of the major issues with running it on 68k hardware.
Sorting that out would have major benefits all round.
