[woomg]

@woomg sure you can.
You just need to clone the login server from GitHub, compile it and run it. It runs with java and can be build with maven.
You need to pass your clientid and secret as environment variables when you run the server.
Also you would need to modify the value of __api_url from the file plugin.googledrive/resources/lib/provider/googledrive.py to point to your server.
I will try to put some documentation in github to easy the process for those who want to implement their own login server. 

I haven't tested it with a headless kodi but, yes, coping the addon_data for the addon (which includes your configuration) should be enough.

Thanks a lot. I will try that.