What you’re describing—NSP/XCI files and “repacks”—is typically used for copyright infringement (piracy). Nintendo actively pursues legal action against sites and tools that facilitate this, and sharing such content violates most hosting and platform policies.
First, break it down:
Whether you are hunting for a for your backup collection, an XCI for plug-and-play, or the elusive v1.1.0 eShop Repack to get the full Dandori experience, understanding the technical nomenclature is half the battle. pikmin 4 switch nsp xci update eshop repack