Nool L01 Private Build Checkpoints

A private development utility for saving and restoring Nool's Servo build checkpoints. It is intended for the account owner's build workflow, not a public file-storage service. Google Drive authorization uses only drive.file: access is limited to files created by this app or specifically opened/shared with it. The checkpoint workflow is being tested before it is relied on for long builds. Contact: creator.theyeti@gmail.com.