Years ago, while I was a poor students I compiled Gentoo on an overclocked Celeron CPU at whopping 533 MHz. Took literally 3 days to get to a functioning KDE desktop.

Worth every second, especially because it was winter and the dorm room was cold. My friends appreciated it too, they nicknamed my desktop "the reactor" for all the warmth it provided compiling all the damn time.

One of us! One of us!