# Offline Systemd Layer

This directory is for offline-host systemd templates and render helpers.

It should define:

1. slot-specific backend service templates
2. blue-green slot-specific backend service templates
3. naming conventions for environment services
4. no legacy aliases outside the configured topology; staging uses blue/green slot-specific backend units
5. host guard services/timers for staging contract checks
6. host-wide offline guard services/timers for `staging` / `exp` health and `5xx` detection