Parallax is a Rust-based polyglot migration and execution platform for analyzing, transforming, and moving software across programming-language boundaries. I built the project around language-neutral intermediate representations, deterministic snapshots, semantic-loss analysis, process-isolated language workers, project migration tooling, continuous synchronization, and stack detection. Its current strongest migration path targets TypeScript/JavaScript to Rust, while additional language connectors are represented with explicit maturity levels rather than pretending unsupported conversions are complete.