Online RootFS growth
On growth-enabled images, Sandbox0 automatically expands the writable RootFS as free space runs low, within a configured sparse logical ceiling up to 64 TiB. Agent processes keep running. Growth is enabled in the qualified Cloud region; confirm activation for other regions. Existing images and snapshots retain their captured storage geometry. The ceiling is logical capacity, not preallocated host disk.
Scrapeless profiles save selected browser state. The reviewed sources do not establish online growth of a complete customer-controlled Linux filesystem. Sandbox0 can retain the surrounding toolchain and artifacts while using a remote browser separately.