GOG.COM on Twitter: "@LassiKokkonen There is no Nintendo integration, nor official, nor community one (yet). But games like Fire Emblem may appear in the app, as "Recently played by others" which shows
Create YOUR Entire GAME COLLECTION in GOG GALAXY 2.0! 😮 (PS3, NES, SWITCH; Anything & Everything) - YouTube
CD Projekt launches GOG Galaxy 2.0 beta | bit-tech.net
A Nintendo DS platform integration for Galaxy 2.0 : r/gog