It's a little harder troubleshooting them from a beach in Florida though.
Yes. You still need a test bench and to either travel a bit or have some local engineers. But the point is all the "manufacturing jobs" aren't people welding, etc.
People don't do a whole lot of welding in many areas of manufacturing including automotive. It's all robots.
There is a lot of automated welding, sure. But, in every small to midsize fabrication shop in America, men and woman are welding, right now.