PenguinPPC will NEVER DIE

Here are a few non-stale links that work as of August, 2022

Bootloaders for Old World Power Macintosh computers (beige G3 and earlier)

Debian PowerPC network installation ISOs

https://cdimage.debian.org/cdimage/ports/snapshots/2022-12-09/debian-11.0.0-powerpc-NETINST-1.iso size - 356MB