[throwaway2016a]

First thought was the website http://www.linuxfromscratch.org/ and book.

Edit: low and behold under "License"...

"This work is based on instructions from Linux from Scratch project and provided with MIT license."

[jfoutz]

My first thought was this old chestnut http://bash.org/?464385

[dboreham]

That's what the article is about.