The typically refers to curated collections of digital game files hosted on the Internet Archive or linked via community-driven repositories like the /r/Roms Megathread . These archives preserve software for the Nintendo DS (NDS) handheld console, allowing users to run games on modern devices via emulators or flashcards. Overview of NDS ROMs

pleonex/tinke: Viewer and editor for files of NDS games - GitHub

: Known for hosting various "complete" or "Special Edition" sets, such as the Ghostware Nintendo DS Collection.

Many DS games were produced in limited quantities. Archives prevent "abandonware" from disappearing into history.