How would you design a Julia-based system for reproducible scientific computation?

You enforce environment locking, deterministic seeds, pinned dependencies, and controlled randomness.

Reproducibility requires strict version control (Manifest.toml), deterministic RNG seeding, and avoidance of floating-point nondeterminism where possible. Parallel execution must be carefully controlled since thread scheduling can introduce variability. Julia environments allow full dependency reproducibility if properly managed.