Slightly misleading, as he originally built this in 2007, and must have not updated the firmware since Sony removed the ability to install Linux on the PS3 year

Slightly misleading, as he originally built this in 2007, and must have not updated the firmware since Sony removed the ability to install Linux on the PS3 years ago. This couldn't be replicated now without either finding old, unupdated PS3s (unlikley considering updating is required for playing newer games), or possibly jailbreaking them to be able to install the other OS.