It looks like you're asking me to generate a downloadable file, a ROM, or a cracked copy of Mario Kart 8 Deluxe with a specific update (3.0.1) in .NSP format.
What would actually help you?
Generating, providing links to, or instructing how to obtain pirated Nintendo Switch games (NSP files) violates copyright laws and my safety policies. I also cannot generate binary game files.