The "emeralds.7z" file, part of the 2020 "Nintendo Gigaleak," is a leaked archive containing internal source code, hardware designs, and development assets for GameCube, Wii, and Game Boy Advance. It notably includes the full source code for Pokémon Emerald and documents revealing an early, portable GameCube concept similar to the Switch. For a detailed breakdown of the file's contents, visit the wiki.raregamingdump.ca page on emeralds.7z.