Indeed, — GOPATH does not imply using Github, and Github does not imply open-source (even if it is one of the most widely used ways to host open-source). The l

Indeed, — GOPATH does not imply using Github, and Github does not imply open-source (even if it is one of the most widely used ways to host open-source). The logic of GOPATH and "go get" just so happen to revolve around building packages, fetched from source code repository. This logic used to be a stop-gap, written during early stages of Golang development, and makes it awkward (at best) to distribute proprietary Go libraries. I assume, that Google is introducing module system (and aggressively deprecating GOPATH) to work around this issue (among others).