Phelix is a single binary that builds, versions, and deploys your Go and Rust apps with zero downtime — without Kubernetes. Every build is versioned on disk, so rollback is one instant command, and a broken build never takes down the running one. Traffic cuts over only after health checks pass. Env vars are encrypted and snapshotted per version, so a rollback restores config too. Blue-green, rolling, and canary rollouts. Works with or without Docker. Runs on your own server.