Even more tangential: I joined a company in 2001 and left in 2010. A tool and library I wrote for debugging 3d geometry is still in active use. In 2010 at a

Even more tangential: I joined a company in 2001 and left in 2010. A tool and library I wrote for debugging 3d geometry is still in active use. In 2010 at a new company, I wrote another tool for visualizing a complicated tree structure. It has thousands of daily active users in the company. My two biggest legacies are tools to help developers visualize their data. I'm pretty proud of that. Even if I don't get to maintain either piece of software, I'm glad to know they helped and continue to help.