Configuration
Runtime configuration stays separate from source and can be validated before the system starts.
DUO.04 · Operating boundary
DUO-Host
The local service boundary that runs DUO as a durable system: configuration, persistent data, APIs and supervised processes.
DUO-Host turns the framework into a system that can be run, inspected and recovered without treating deployment as an invisible afterthought.
- 01 · Operation
- Local-first
- 02 · State
- Persistent + explicit
- 03 · Boundary
- API + WebSocket
System boundary
A named part of a larger runtime.
Services
The entity runtime, interfaces and supporting services are named operating units with observable health boundaries.
Recovery
Data locations, process ownership and startup paths are documented so the system remains maintainable over time.