# Operator & user documentation Runbooks and how-tos. **Product design SSOT** is under [`../design/`](../design/). | Document | Purpose | Status | |----------|---------|--------| | [DEPLOYER_HOST.md](DEPLOYER_HOST.md) | Create/baselined host requirements | Outline (POR) | | [INSTALL.md](INSTALL.md) | Install stages S0–S6 | Outline (POR) | | [UPGRADE.md](UPGRADE.md) | Upgrade / rollback | Outline — full design in [design/updates-lifecycle.md](../design/updates-lifecycle.md) | | [HERMES_MODELS.md](HERMES_MODELS.md) | Main + auxiliary models | Outline (POR) | | [ARCHITECTURE.md](ARCHITECTURE.md) | Operator-facing architecture summary | Outline → links design | | [POLICY.md](POLICY.md) | OpenShell policy apply | Outline (POR) | | [SETUP_UX.md](SETUP_UX.md) | Owner educational connect flows | Outline (POR) | | [OPERATIONS.md](OPERATIONS.md) | Day-2 logs, doctor | Outline (POR) | | [providers/](providers/) | Square, QBO, Vagaro, channels | Outlines | Implementation of install scripts is **not** started until **build**.