I said unofficially, like a homebrew scene where fans make custom games that can be added via modded methods. I don’t expect you would be able to make such ports, but I imagine there be fans of yours who, if they are interested, could reverse engineer the game to work on other platforms. Of course those games won’t be available in the official stores like eshop, but rather through modded means on a hacked device. For instance, Cave Story which officially only came out on PC and Nintendo platforms, but fans made unofficial ports to consoles like psp or vita.