Shawn Powers
Shawn is a long time Open Source evangelist. He was a contributing editor at Linux Journal until they shut down in 2019, a Linux/DevOps trainer for CBT Nuggets, and has been a system administrator for even longer. Basically he's an old *nix guy who can't grow a proper beard.
These days he runs the Nerdlings company, where he produces free Linux training on his YouTube Channel, draws the MyBigRoundWorld web comic, and wastes far too much time on social media. He's a pretty friendly guy, and isn't quite as immature as he seems. But just barely.