Programming
Homebrew DS applications are generally programmed using C/C++. A popular toolchain is devkitARM. A few libraries that make programming easier include libnds and PAlib. libfat helps developers write to a FAT file system on the homebrew storage device while DSWiFi allows developers use WiFi on the DS. Several tutorials have been written about the various aspects of the system.
One of the biggest issues of programming homebrew on the DS is accessing a card's file system. This is due to each homebrew device using a different interface to access an inserted media card. This has been solved by the introduction of DLDI (Dynamically Linked Disc Interface) drivers, which superseded the use of drivers statically linked into the homebrew application during compilation. The current FAT library, libfat, is provided with the ability to use these drivers. Its predecessor, GBA NDS FAT, can be modified to use these drivers too.
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