I think this step is a missing example of how to run or build the generated code. Also, it's not obvious that we need also to include the generated files when executing either go run or go build like go build main.go wire_gen.go.

I think adding an extra paragraph explaining how to run or build would be very useful & prevent frustration, especially for people new to go.

When following the steps, I think most people will set seeing the word Hi there! on the console to be the goal to verify that we get the same outcome as in the non-wire code.