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I push a version to github which uses libfat instead of the OS FS functions. This lead to(depends on your device though) and(the normal version is totally fine, the sd_acces fork is NOT needed),. Otherwise it will fallback to the OS functions (=> only support in SSBU).The code can be found here: https://github.com/Maschell/SDCafiine/tree/experimental I added some more usage information to the readme on github. The file structure for the USB drive is exactly the same as SD. Just copy the files on it, like it is a normal SD Card and insert it into your WiiU.Please notice that this is a VERY experimental version. It's been only tested with 2 games, and only on one console.The workarround for using libiosuhax used in for example ftpiiu everywhere break the disc reading. You'll get an "invalid disc" error, while the MCP Hook is opened. Sorry.Here is a compiled version:A proper release is following when it's stable (and we know itIt might fail for all other games, or just crash after 10 minuten of gameplay. I don't know. It would be cool if some people could test it, and report any issues or general feedback.