I have a little book of things I want to open-source before I die. Some of it is my own stuff that I can't release yet for competitive reasons, others is stuff I want to make money and buy the rights so I can give it away.

It's easy to think of a will and death as something far off and mostly about finances and money, especially for people our age. But who knows how many fast-inverse-square-roots are hidden in the bowels of legacy systems that will never see the light of day? That keeps me up at night.