- [state.md](state.md) — where things are now: committed vs stashed, the box and what's in it, bringup progress, open items. **All current-placement state lives here and only here.**
- [hardware.md](hardware.md) — host rules: interface conventions, tuning, how to run.
- [nics/](nics/README.md) — the transport rule, the comparison table, and one directory per NIC: [x520](nics/x520/README.md), [connectx-5](nics/connectx-5/README.md), [x710](nics/x710/README.md), [e810](nics/e810/README.md).