amiitool.net

docs:

• https://wiki.gbatemp.net/wiki/Amiibo
• https://kevinbrewster.github.io/Amiibo-Reverse-Engineering/
• https://www.3dbrew.org/wiki/Amiibo

ref:

• https://github.com/socram8888/amiitool
• https://github.com/DRKV333/libamiibo