Long-time Linux user (20+ years), some patches in the kernel, lots all over userspace.
Consulting scientist at Dirty South Supercomputing in Atlanta. ex-NVidia, ex-Google, ex-Intel.
I've run a technical Mediawiki for over a decade at Dankwiki, with plenty of content regarding Linux. For a few years, I ran a boutique Linux distro, SprezzOS. It faded away, but its ideas and patches live on.
Georgia Tech Yellow Jacket.