Sandboxed Code Execution
Directory Snapshots: Resumable project state for Sandboxes | Modal Blog

Directory Snapshots: Resumable project state for Sandboxes | Modal Blog

2/24/2026

What this post added

Introduced Directory Snapshots for Sandboxes, allowing specific directories to be snapshotted and mounted into other Sandboxes. This enables independent lifecycle management of system and application state, facilitates pre-warming Sandboxes with project-specific code, and optimizes file loading by prioritizing snapshot contents.

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