Salt and Sanctuary on your Nintendo Switch using an NSP file, you will need a console with custom firmware (CFW) and a homebrew installer like Prerequisites Custom Firmware (CFW):
, skip opening logos, and quit directly to the desktop (or Home screen). eShop Product Specifications The official Nintendo eShop listing Salt and Sanctuary provides the following technical details:
Salt and Sanctuary on the Nintendo Switch, the most significant recent development is the introduction of Enhanced Mode
The eShop version often goes on sale for 50-75% off. It is frequently available for less than $10 USD, making an unofficial NSP largely unnecessary for a game of this size.