Get the most out of the Game Boy hardware
Gain complete control over the console; with no middle-man, debugging is made simpler.
Push the Game Boy's limited capabilities to the limits writing native assembly code.
RGBDS' four programs cover the whole compilation pipeline into a ready-to-play ROM, from RGBGFX (the image converter) to RGBFIX (the header "fixer").
Each tool can easily be swapped for a custom one, or used stand-alone as part of another process.