To run any ROM, the emulator requires "keys" derived from a physical Nintendo Switch console.
That being said, if you're still interested in downloading the ROM, here are some general guidelines: celeste nintendo switch rom download
Celeste is a critically acclaimed platformer game developed by Matt Makes Games and published by Humble Bundle. The game was initially released in 2018 for PC and later ported to various platforms, including the Nintendo Switch. This report provides an overview of the Celeste Nintendo Switch ROM download, including information on the game's availability, legality, and potential risks associated with downloading ROMs. To run any ROM, the emulator requires "keys"