SIA is a local-first automation platform in development. This is a concept preview, not a verified installed system.

Hardware / edge architecture

The home needs infrastructure, not another fragile hub.

SIA's proposed deployment model includes native Station software, local services, segmented networking, resilient protocol paths, supervised safety I/O, and power-aware recovery. Optional compute adds intelligence without becoming the root of authority.

CORE

Primary SIA Station and local services

Runs local Core, identity, policy, state, data, protocol services, and low-latency orchestration. The production reference design targets secure or measured boot, device-bound key material, encrypted storage, a stable clock, and watchdog recovery.

GPU

Optional compute node

Handles heavy local vision, avatar, generative, and accelerator workloads. Failure should reduce advanced features without disabling ordinary home control or safety functions.

PoE

Managed Ethernet fabric

Carries cameras, access points, wired endpoints, and edge services with VLAN and ACL segmentation so cameras and untrusted IoT do not become peers of Core or management networks.

TBR

Thread Border Routers

Provide resilient Matter-over-Thread reachability. The reference model favors multiple compatible border-router paths rather than treating one border router as a permanent device identity.

GW

Protocol gateways

Zigbee, Z-Wave, KNX, vendor buses, serial, RF, and other bridges remain permission-bounded adapters. Gateway compromise should not automatically imply Core compromise.

UPS

Power supervision

UPS state and recovery are observable so an outage or restart does not silently extend stale authorization, stale state, or unsafe assumptions.

Network trust zones

Segmentation reduces blast radius. Identity still decides.

SIA does not equate network location with trust. Devices, services, users, safety systems, management functions, and cloud coordination live in distinct trust zones with explicit contracts between them.

Z0 — Root / Management Secure boot · hardware root of trust · break-glass recovery
Z1 — Core Services Core · local data · policy · evidence · workload identity
Z2 — Device Networks IoT · cameras · protocol gateways · industrial buses
Z3 — Safety / Security Alarm I/O · safety controller · cellular guardian · approved outputs
Z4 / Z5 / Z6 — Users, service, internet Authenticated surfaces · temporary access · outbound cloud coordination

Protocol fabric

One capability model above many radios, buses, and vendors.

Protocol details are adapter concerns. SIA Home experiences reason about stable capabilities such as power, dimming, temperature, shades, locks, media, cameras, alarms, and energy readings.

Matter 1.6 / Thread / Wi-Fi Zigbee Z-Wave BLE MQTT / ESPHome RS-485 / Modbus RTU/TCP ONVIF / RTSP KNX / BACnet Vendor bridges Sub-GHz / supervised RF

Reference responsibilities

What each hardware layer is expected to do.

Layer Primary responsibility Architectural guardrail
Edge controller Core, state, policy, local services, device orchestration Hardware-backed identity, encrypted storage, watchdog, stable time
Compute / GPU Vision and heavy intelligent workloads May fail without disabling ordinary control or safety
PoE / Ethernet fabric Cameras, APs, wired endpoints, edge service transport VLAN and ACL segmentation around lower-trust device classes
Protocol gateways Translate Zigbee, Z-Wave, KNX, serial, RF, and vendor buses Declared capabilities and minimum permissions
Safety controller / I/O Supervised alarm and designated life-safety signals Independent from optional assistance and device execution
Cellular guardian Out-of-band alarm and health path where commissioned Independent power and bounded safety-plane protocol
UPS / power supervision Orderly shutdown and bounded degraded operation Recovery cannot silently revive stale authority
Hardware
root of trust
Secure / measured boot Installation identity Watchdog Encrypted state

Production posture

Optional accelerators are resources, not authority.

SIA's hardware design keeps the ordinary control plane and safety responsibilities independent of discretionary model or GPU workloads. That lets advanced perception and agents improve the experience without making them prerequisites for basic home operation.

Stable cryptographic installation identity Device-bound key material Fail-bounded watchdog recovery Observable power and degraded state

Build for the property

Every SIA deployment starts with the real home.

Room count, building materials, network topology, cameras, existing protocols, life-safety boundaries, media, climate, and resilience requirements should shape the hardware plan before devices are commissioned.