If you are using a modded Switch or an emulator (like Ryujinx or Eden ), you can access community-created features that are "exclusive" to the modding scene:

The primary difference lies in the source and how the console "sees" the data:

: Unlike XCIs, NSPs must be "installed" to the console's internal memory or SD card, functioning like an app on a smartphone. Impact on the ACNH Experience

As of late 2023, the most cutting-edge "exclusive" content for ACNH isn't in the NSP or XCI files themselves, but in . These are mod folders that sit on your SD card and overwrite the game's data at launch.