Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Nintendo DS homebrew software is unofficial software written for the Nintendo DS by hobbyist programmers, as opposed to software written by a game production company or corporation (using the official development tools from Nintendo). The DS homebrew software is typically used on the DS via third-party rewritable game cartridges, or SD cards. The earliest solutions for homebrew employed a storage device in the GBA cartridge slot (referred to as "SLOT-2") and a booting tool in the DS cartridge slot (referred to as "SLOT-1"). This two-tool combination is commonly referred to as "SLOT-2" or "1st Generation".
