Note: This method requires a modified Switch running Custom Firmware (CFW) like Atmosphere. Using NSP files from unofficial sources can lead to account bans if you connect to Nintendo services.
: Open a homebrew installation tool like Tinfoil or Goldleaf from your gallery. Navigate to SD Card : In Tinfoil , go to "File Browser" and select sdmc:/ . In Goldleaf , select "Explore Content" and then "SD Card." Coromon Switch NSP (eShop)
: Locate your NSP file, select it, and choose "Install." You will be asked whether to install to the "Console Memory" or "SD Card." Note: This method requires a modified Switch running
: Tap the magnifying glass icon in the top-left and search for "Coromon." Coromon Switch NSP (eShop)