To be able to use this tool, you need to use the BIOS and the firmware of your Nintendo console. Once you have this ready, all that's left is to enjoy the backups of your favorite games.
melonDS's purpose is to get the most perfect emulation possible without neglecting the benefits of a program of this quality. This means that you can enjoy the online options of your Nintendo devices: local multiplayer over Wi-Fi and an online connection.
melonDS is a very interesting app for you to enjoy the Nintendo DS and 3DS games you have, with the quality that comes with playing on Mac. This app is continuously updated, thanks to the work of its creator.