Code execution uses a three-tier model consisting of subprocess as Tier 1, Docker container as Tier 2, and Firecracker VM as Tier 3 so that execution can be isolated at increasing levels.

Supporting contexts

Quoteverbatim

Three-tier execution

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Quoteverbatim

subprocess (Tier 1), Docker container (Tier 2), Firecracker VM (Tier 3)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Quoteverbatim

Code Execution

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Effective from: 7/16/2026, 11:31:40 PM