I was sort of frustrated that while the source exists for 2.11 now, it doesn't quite build right out of the box into a free-standing disc image-- I think it was missing some data needed to build either MSDOS.SYS or IO.SYS. Once you have all the files, you still need a chicken and egg process to get to a bootable disc, not just a 360k image you can write to a floppy.