This is a little project I started two days ago. It's not perfect. I know it has issues running under a few games, but it is a WIP. It can currently copy and write saves back to the cart. I don't have any digital games outside VC, so I'm not so sure about how it will work with those. The filesystem code is based off of ironhax's. It writes saves out to a folder on SD named "Saves." In there, you'll find folders named after the saves it finds. For example, the Pokemon games export to a folder named "main." I plan to add support for choosing export directories next, but I'm not sure how long it'll take. Hope someone finds it useful.