On: Nintendo updates 3DS to block Bannerbomb3 despite eShop discontinuation

[mmebane]

Hell, the original R4 managed it with 2006 hardware. It's conceivable you could do the same thing today with an RP2040.

EDIT: I found a recent GBATemp thread where some research into flashcart design is going on. Maybe something will come of that. Link: https://gbatemp.net/threads/gathering-ds-flashcard-knowledge...