No I did not "choose to download packages from NPM". Choosing means there is an alternative. And besides that the registry part is invisible in your package fil

No I did not "choose to download packages from NPM". Choosing means there is an alternative. And besides that the registry part is invisible in your package file (hardcoded default like GOPROXY). If you look at it, it's pretty similar. The part before the first slash is invisible: npmjs.com/org/package proxy.golang.org/org.com/package The difference with Go is that you can actually change the first part if you want, or even disable it.