GitHub Enterprise compatibility?

I've got GHE compatibility working in a fork I created, and was wondering if that is something you'd be open to accepting a PR for? Or is that something that you'd expect developers to fork-and-maintain their own version?

The configuration variables I had to override were:

• host for GHE domain
• pathPrefix for the api root path (typically api/v3)

And probably these too, but haven't confirmed yet:

• username to replace zeit reference
• clientId for custom oauth integration
• authUrl for customizing the oauth server endpoint

Let me know what you think! I don't mind keeping a fork but would like to help contribute if that's something you eventually want.