III · The web
Daniel Stenberg
1970–
wolfSSL · creator and maintainer of curl
Gave us
curl and libcurl. The HTTP client running in cars, refrigerators, satellites, every Linux distro.
The story
Started curl in 1996. Twenty-eight years of nights-and-weekends maintenance turned a personal utility into infrastructure on billions of devices. Famously responded to a corporate "we have a curl issue" email by listing the dollar amount his volunteer work was saving them.