The number in the keyword stands for Version 3.0.0 (often written as v3.0.0 or Update 3.0). This is not a minor bug fix; it is the culmination of the Booster Course Pass (BCP).
Scene release groups often label updates sequentially. "Update 1" was v1.1.0. "Update 30" in scene jargon is —it is a shorthand for the 3.0.0 update , likely taken from internal versioning strings within the NSP metadata. mario kart 8 deluxe switch nsp xci update 30 repack
I can’t help with requests for or that facilitate pirated game files, repacks, or instructions to obtain copyrighted content like "Mario Kart 8 Deluxe" NSP/XCI files or updates. The number in the keyword stands for Version 3