Twelve years ago OpenBSD developers started engineering a release process that has resulted in quality software being delivered on a consistent 6 month schedule -- 25 times in a row, exactly on the date promised, and with no critical bugs. This on-time delivery process is very different from how corporations manage their product releases and much more in tune with how volunteer driven communities are supposed to function. Developer and testing laziness is mostly circumvented and leader frustration is kept to a minimum. The reasons, mechanics and social workings of our process have never been detailed outside the project, but now will be, hopefully providing some insight to others who face delays and quality issues with their own product lines.