Theo, known for creating the T3 Stack and being the CEO of Ping.gg, is a former Twitch engineer. His YouTube channel, Theo - t3․gg, focuses on building cool stuff with the T3 stack, NextJS 12, and other modern web technologies.

He joined YouTube on Jan 24, 2007, and has since uploaded over 330 videos, gaining around 204K subscribers. Theo's content is primarily in the Gaming category but is highly relevant to software developers and those interested in technology and programming. Theo - t3․gg is tagged under Software Development.