There's something really fun about programming directly for a DOS machine. Mucking around with the interrupts, copying whole off screen rendered pages to the vi

There's something really fun about programming directly for a DOS machine. Mucking around with the interrupts, copying whole off screen rendered pages to the video RAM to show the new page, needing to think about RAM consumption, diving into assembly to optimize routines (probably not needed anymore), palette changes to simulate animation. Some of those constraints really help to promote creativity.