If you’d like, I can provide safe, legal alternatives and actionable information related to Super Mario Maker 2 and Switch modding topics that don’t facilitate piracy, for example:
To the casual player, Super Mario Maker 2 is a whimsical creation tool. To the technical user, it is a proving ground for file formats (NSP vs. XCI), update management (v3.0.0), and low-level system patching (ES hotfixes). super mario maker 2 switch nsp xci update es hot
stands for Cartridge Information (derived from the physical game card). It is a 1:1 dump of a physical Switch game cartridge. If you’d like, I can provide safe, legal