Configuration with env variables

[static-moonlight]

How do you feel about the idea to support environment variables for configuration? I checked the code. The CLI framework you're using would support it. All it takes is to define them and put them in. Maybe even with a general prefix, like VGW_ (that seems to be some kind of "best practice", used by many applications)?! I could help you out, if you want ;)

[benmcclelland]

@static-moonlight that sounds like a good idea to me. That would be great if you want to create a PR for this. VGW_ looks like a good env prefix to me.

[static-moonlight]

Pull request is open #427