用途清楚，边界明确。
自己与朋友的小圈子
服务于本人和少数朋友使用的私人应用，不提供公开注册。备份由维护者管理，使用者无需连接自己的网盘。
按最小范围授权
计划申请 drive.file，用于本工具创建的备份文件与目录。不需要访问 Gmail、通讯录或日历。
为恢复而使用
Google API 数据仅用于备份管理、完整性检查与恢复，不用于广告、数据售卖或训练通用 AI 模型。
About Chengming Backup
Chengming Backup provides private backup and restoration for an app used by its owner and a small circle of friends. Its planned Drive integration stores encrypted snapshots of application data, files and configuration, and restores them when needed. Cloud backup is not active during the current setup stage.
The requested Google permission is drive.file, limited to files created by or explicitly granted to this application. The public website does not request Google credentials or run the authorization flow. See the privacy policy in English for data access, use, storage, sharing and deletion details.