If using emulators, you can combine the base game and update using SAC (Switch Army Knife) .
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Note: Ensure your custom firmware (Atmosphère) is up to date to support the latest update versions. Nintendo Switch NSP Combination Install Tutorial CAS-NSwTcH-NSP-Update105-Ziperto.rar
Use WinRAR or 7-Zip to extract the .nsp file from the .rar archive. If using emulators, you can combine the base