If you are concerned about being banned from Nintendo Online:
One of the most useful aspects of the NSP format is save management. If you are upgrading from an older version (like v2.0.0) to v303: mario kart 8 deluxe 303 nsp
Mario Kart 8 Deluxe remains one of Nintendo Switch’s standout racers, and the “303 NSP” build (a common fan shorthand for a specific NSP file/version) is worth a look for players interested in a polished, full-featured karting experience. Below is a concise, engaging review covering gameplay, content, performance, and who should buy it. If you are concerned about being banned from
Nintendo’s telemetry is aggressive. If you install a "303 NSP" and later connect to the official Nintendo servers (even just to update a different, legitimate game), the console sends a log of installed titles. If Nintendo sees a title ID that doesn't match a purchase receipt in their store, they issue a CDN ban. Nintendo’s telemetry is aggressive