# Host Controller Python scaffold for the Raspberry Pi / host-side controller. Host responsibilities: - state machine orchestration; - geometric gate; - manual-mode UI integration; - serial/protocol session with Teensy; - controller-job validation; - telemetry capture; - logs, manifests, hashes, and `/data/status.json`. This package is intentionally small for now. Add real hardware adapters behind interfaces and keep state-machine/contract tests fast.