Emulators themselves are legal. However, downloading commercial game ROMs you do not own falls into a legal gray area that is considered copyright infringement in many jurisdictions.
To get the game running, you need a "fixed" configuration. This refers to having the correct combination of software and system files:
La emulación no es ilegal en sí misma. Yuzu es un software legal. El problema legal surge de cómo obtienes los juegos. Para usarlo de forma ética y legal, necesitas: