There are 2 repositories under yaz0 topic.
GameCube File Tools, a GUI tool for modifying some common file formats used by GameCube games
A Standalone RARC and U8 Editor for Nintendo Wii and Nintendo GameCube Archives.
A random mess of tools for working with and information about the Legend of Zelda: Breath of the Wild data.
Compress and decompress SZS files with the Yaz0 compression - for 3DS games
C# Compressor/Decompressor - MIO0, Yay0, Yaz0
Supports a wide range of compression algorithms mainly used in video games, like LZSS, LZ10, LZ11, MIO0, YAZ0, YAY0, PRS and more.
A tool to edit many video game file formats