This bit me really hard as I only come into contact with Go occasionally. First, I couldn't understand how GOPATH worked (many years ago :) ), then that change

This bit me really hard as I only come into contact with Go occasionally. First, I couldn't understand how GOPATH worked (many years ago :) ), then that changed, and recently (last year) I spent something like three days trying to figure out why some dependency wouldn't fetch (it was because modules). :) For a person who works with a language daily such changes are not as obvious.