Want to be a hacker? Go to Dallas.
A man named Tinker clutches an HDMI cable as he bumps through the crowd milling in front of the stage at Family Karaoke, a joint on Dallas’s east side. A former Marine, Tinker has a solid but not overly muscled frame. Less weight lifter than baseball infielder. He has a voice that belongs on a live-fire exercise. It booms, even over the thrump of the techno blasting from two speaker towers on the stage.