cheeseDOS is an x86, fully GNU GPLed, custom C99 written, 1.44MB, monolithic, live, Single Address Space Diskette Operating System that loads into RAM.

Linux/x86 Bridging Firewall on a Floppy

Shell scripts for working with retro floppy images

A terrible shell script to automate making DOS floppies on Linux while using USB floppy drives based around ufiformat and mkfs