These tutorials provide step-by-step guidance on combining NSP files, updating custom firmware, and enhancing game performance: Nintendo Switch NSP Combination Install Tutorial YouTube · Retro Game Rarities
You can use tools like the Swiss Army Knife (SAC) app to merge a base NSP file with its corresponding update files. Place your Nintendo keys in the app's bin folder. Select "Update NSP" and load the base game file. Dark Souls Remastered Switch NSP (RF) (UPDATE)
Load the update file and click "Update NSP file" to create a single, combined package. updating custom firmware
For users on custom firmware (CFW) like Atmosphere, there are two primary ways to handle updates: Dark Souls Remastered Switch NSP (RF) (UPDATE)