INB4: "That's called a GBA/DS, dummy!"

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So I play the games with the ROM's, I own all the carts but having a very old DS, it needs to constantly be plugged in, and at this point the buttons are going. I also find it easier to save scum using an EMU instead of the actual Cart.

Have any of y'all either made a Raspberry Pi GBA EMU machine, or figured out an easy way to port your games with a flash drive? I've got a friend who does 3D printing, and was hoping to make a customized GBA machine with a larger screen and slightly different button placement to fit my hands. Perfect world it would have a USB-C charging port that also doubled for a USB-C headphone port.

No idea what this would take, but y'all would be the nerds to make it work. Get me started with some links pls?