Gamecube linux, it is possible!
My old Powermac G4 Desktop environment I got myself a new powermac g4 (in a year 2022). This video up here is 10 years old. Newest debian distro that works for cubes 32-bit powerpc processor is debian 6.0. Newer ppc linux needs 64-bit powerpc processor, even Wii U is on the same level as gamecube. But it is possible to use PowerMac to compile 32-bit packages. I used 10 years ago MintPPC linux distro in my G4 Mac, nowadays you can find better distros. Someone threw away powermac g4 MDD, if im not mistaken its one of the best g4 machines out there. And you can use chroot and mount gamecubes filesystem as a loopback device. And you can even upgrade from debian 3.1 sarge all the way to 6.0 one upgrade after another! I prefer powermac's linux to compile all the powerpc linux packages, with gamecube only compiling it could take many days. And broadband adaptor is a must have for gamecube linux. SD card only mode is a clonky way. Gamecube has its own gx graphics ...