seatbelt-sandboxer

To create a macOS Seatbelt sandbox profile, you apply an allowlist-based methodology that denies all operations by default, only permitting necessary file, network, and IPC access for the untrusted CLI utility. This enforces strict process isolation.

The best way to isolate build tools on macOS is generating a minimal Seatbelt configuration using sandbox-exec, which restricts system resource access by denying default operations and only allowing necessary file and process operations for the host system's protection.

Yes, you can use sandbox-exec to restrict a third-party application by generating a restrictive Seatbelt profile that limits file access to only the specific project directory and necessary system libraries, mitigating supply chain risks through defense-in-depth.

Yes, macOS Seatbelt sandboxing requires an allowlist for file and network operations. It uses minimalist allowlisting to enforce least-privilege isolation, denying all operations by default and only explicitly permitting necessary system resource access.

You should use a Seatbelt sandbox profile when you need to run an untrusted build tool or a third-party CLI utility, requiring strict process isolation and least-privilege access to prevent unauthorized system access and mitigate supply chain risks.