//! Tier D: integrate persistent host state, diagnostics, scratch data, and replay.
//!//! Begin with [`d01_system_locals`]. The final replay lesson requires the `testkit`
//! feature and is included in docs.rs builds.
pubmodd01_system_locals;pubmodd02_diagnostics;pubmodd03_dense_entity_scratch;pubmodd04_fixed_point_values;#[cfg(feature ="testkit")]pubmodd05_deterministic_replay;