i have lots of ds games that are on the compatibility list rather then having to carry so many carts or have to go online to download a copy of the game is there a way to back up the cart using the ds without needing a pc?
How many game cartridges are we talking about? You can dump your .nds roms using GodMode9.
https://3ds.hacks.guide/godmode9-usage.html
Dumping a Game Cartridge