(under the 'File' menu) to scan Mii-related figurines, unlocking special costumes in games like Mario Kart 8 Transferring Miis
To ensure your Miis remain "portable," they must be correctly placed within Citra's virtual NAND. The standard path for Mii data is nand > data > [system_id] > extdata citra mii maker portable
Mii Maker is a system applet ( .app or .cia format) typically dumped from a physical 3DS console. (under the 'File' menu) to scan Mii-related figurines,