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 matched to increasing isolation levels.

Three-tier execution

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

subprocess (Tier 1)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Docker container (Tier 2)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

Firecracker VM (Tier 3)

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md