Comment by mort96

I mean yeah, but other languages don't make it quite so easy to make this mistake. Once your Go project gets to a size where it makes sense for different files to live in different folders (which, given Go's folder-based module system, often happens at just a couple hundred lines of code), the most straightforward way which the tooling nudges you towards means putting GitHub URLs (or URLs to whatever git host website you happen to use) in your source code.