Am I the only one sad to see the original machine gutted out? I get that these machines aren't particularly useful (I have one myself) but it really does seem a shame for it to be modified in this way.
These iMac G4s still run Linux, FreeBSD and OpenBSD (and of course OS X) very happily, and are very nice machines to run those OSes on (I run OpenBSD on one of mine, and OS X on another). Soon the "new" M1 hardware inside will be just as obsolete. Still, whatever, it's his computer to butcher I guess, and the overall stock appearance was retained well. I just don't personally like the destruction of somewhat rare, working hardware.