So, this is the guide: https://gist.github.com/Irastris/31766414a981a056d49c1242a019829a
It talks about FunKiiU (which works fine on Linux) and cdecrypt (which is Windows-only).
Are there alternatives to cdecrypt which run on Linux?
I’m not really familiar with Wii U emulation, but the cdecrypt github page says you can compile it on Linux. It isn’t Windows only.
Oh wow, you are right. I’ve completely missed that part. Time to fire up a docker container.
I presume the Linux version is the same (I used the Windows version) but WiiUDownloader gives you a lovely graphical interface to download anything from the WiiU eShop servers. Even copies files straight to an SD card ready to install on your WiiU.
That might even be the better tool for the job! Thank you.