NUT Server 2.1
Nut will authenticate with gdrive if you create a gdrive application, and place its credentials.json file either in nut's root directory, or in the conf directory. You can generate / download credentials.json from https://developers.google.com/drive/api/v3/quickstart/go
Once this is set up, you can access your gdrive through tinfoil, by using either the usbfs, nutfs, or gdrive protocol. Accessing gdrive while connected to nut will download the credentials so further gdrive authentication will not need to be tethered to Nut.