Subsystem-specific architecture documentation. See ../CLAUDE.md for which doc to read based on the crate you are working on.
overview.md-- High-level system architecture and crate responsibilitiesdata-flow.md-- Build pipeline data flow from CLI to outputdeploy-preemption.md-- Deploy preemption and serial port managementruntime.md-- Daemon runtime, async model, and task lifecycleserial.md-- Serial port communication and USB-CDC handlingpyo3-bindings.md-- PyO3 Python bindings for the fbuild-python crateportability.md-- Platform-specific considerations (Windows, macOS, Linux)library-selection.md-- LDF-style scanner / walker / resolver subsystem (fbuild-header-scan,fbuild-library-select)