Leo, an avid handheld gamer, knew exactly what "Legacy Edition" meant. It was the industry’s polite way of saying "the same game as last year, just with new kits." Yet, in the quiet of his room, as the NSP file finished its verification and the familiar EA Sports jingle filled the air, the technicalities didn’t matter.

While many users turn to NSP files to test a game before buying, or to back up their own physical cartridges, the reality is that the Switch homebrew scene is heavily monitored. Nintendo is notoriously aggressive regarding Digital Millennium Copyright Act (DMCA) takedowns.