Legal, open source, 3DS toolkit. Compiles under Linux and Windows(MinGW).
1/ make_cia - Generates CIA files
2/ make_banner - Generates ICN/BNR files
3/ make_cdn_cia - Repackages CDN content into a CIA file
4/ extdata_tool - Extracts standalone and FS Extdata, and can process Title Database files
5/ iconcache_tool - Extracts cached icon data from homemenu extdata