Make backups
If you want to create patches rather than just apply them, you need a different set of tools. nintendo switch rom patcher
: A popular "all-in-one" Windows tool that can patch XCI/NSP files, merge updates and DLC, and convert between formats. NSC_Builder Make backups If you want to create patches
Patches are essentially "instruction manuals" for a patcher tool, detailing exactly which bits of data in a game file (the ROM) should be changed. merge updates and DLC
Community patches remove frame rate caps, improve draw distance, and fix memory leaks.