Cubeboot is a GameCube bootloader/firmware project that enhances the boot process by restoring customizable boot animations, enabling SD card-based software loading, and providing fallback mechanisms. It patches the system's Initial Program Loader (IPL) to inject custom functionality while maintaining compatibility with official hardware. The project supports multiple GameCube hardware revisions (NTSC/PAL variants), various storage adapters (SDGecko, SD2SP2, RP2040-based PicoBoot), and runtime configuration via INI files. Key features include boot animation customization (colors, logo replacement), button-triggered DOL loading, progressive scan support, and fallback to secondary bootloaders like Swiss. The architecture combines bare-metal C/assembly with modular components for filesystem access, ELF/DOL parsing, and hardware abstraction, built using the devkitPPC toolchain.