toolman.org publishes a significant number of Go libraries (or, soon will) and we use a peculiar naming scheme for our repos on github.com. Since GitHub chooses to enforce a flat namespace on their users, toolman.org employs a custom go get redirector that translates GitHub repository names into a hierarchical package structure for Go libraries.
Here's an example: the GitHub repo toolmanorg/security-tools-passwd is the home for the Go library toolman.org/security/tools/passwd. In fact, since this package uses an import path override, that's the only name you can use to reference this package. You install it with go get toolman.org/security/tools/passwd and you use it in your code with import "toolman.org/security/tools/passwd".
The translation rules (from GitHub repo name to Go package name) are quite simple:
toolmanorgbecomestoolman.org- all
-characters become/characters - except, double-dashes (e.g.
--) translate to single dashes (-) in the Go package name
Enjoy!