HAOS Backups → Cloud (rclone, throttled, GFS retention)

Get HA's daily automatic backups off the single SD card to cloud storage, without saturating a small home uplink, and with automatic thinning on both ends. Battle-tested 2026-07-11 on a Raspberry Pi 4 (HAOS 18.1, Core 2026.6.4) with jcwillox/hassio-rclone-backup v3.4.1 → Google Drive. ⚠️ marks real pitfalls. ha = SSH alias per haos-addon-deploy §0/§8 (bash -lc rule applies).

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