Libretro is a simple but powerful development interface that allows for the easy creation of emulators, games and multimedia applications that can plug straight into any libretro-compatible frontend. This development interface is open to others so that they can run these pluggable emulator and game cores also in their own programs or devices. SameBoy is an extremely accurate open source Nintendo Gameboy (DMG) and Gameboy Color (CGB) emulator, written in portable C. It features link cable emulation, and includes open source DMG and CGB boot ROMs.