For what it's worth, only 1/4 of the toolchain (Red → Red/System compiler and Red/System → native compiler + loader/linker) depends on Rebol2, which in turn is

For what it's worth, only 1/4 of the toolchain (Red → Red/System compiler and Red/System → native compiler + loader/linker) depends on Rebol2, which in turn is 90% compatible with Red.