As is common among some hackers, [Henry] re-purposed an ATX power supply unit to function as a bench power supply for testing circuits on a breadboard (much like this fancy example).
However, safety mechanisms on some modern PC PSUs do not automatically reset after over-current protection has kicked in, which soon became bothersome for [Henry]. In order to make his power supply more hacker-friendly, he wired up and programmed an ATtiny85V, using some Arduino libraries, to do that for him. This simple project is a terrific example of using a hack to improve a pre-existing hack.