When Disaster Strikes
Earthquake, typhoon, battlefield — when the network goes down, xGrid is the last line of defense.
Network Down
Earthquake collapses cell towers. Typhoon cuts fiber lines. Cloud services become unreachable — but patients still need care.
Equipment Damaged
Flooding, lightning, shelling — when equipment is damaged and data becomes inaccessible, you need a system that already lives on every device.
Field Operations
Remote disaster sites, mobile clinics, forward operating bases — no stable network, but nurses can run the full patient workflow from a phone.
De Novo xGrid: Built for the Worst
An offline-first medical platform on a credit-card-sized Raspberry Pi. Nurses operate the full patient workflow from their phones — registration, triage, surgery, transfusion, discharge billing. Sync when connected, operate independently when not.
Built for Real Disasters
Designed with input from emergency responders and medical professionals
Walkaway Test
If the dev team dissolves and servers shut down, can the system keep running? We validate with 5 tests.
Lifeboat Protocol
When the hub fails, edge devices can rebuild the system.
Like a starfish regenerating a limb, every De Novo xGrid edge device can rebuild the central brain.
When designing a system, assume you'll be hit by a bus tomorrow. Can your users continue without you? This is our standard for every line of code.
149-Step Automated Test — 10 Patient Scenarios
The most demanding test: 3 of 8 medical stations forced to evacuate simultaneously — with active blood transfusions and an ongoing surgery. The system ensured every patient record, blood bag, and medication transfer was tracked and verified, without interrupting care.
Validated on Raspberry Pi 5 · 20 concurrent stations · zero errors
View Full Report →Core Operations
Three scenarios for high flexibility and resilience
ローカル・カーネル
ローカル サーバーにより、ステーション内のすべての電話機が同じデータを共有
SDK は単一デバイス上の PWA 間の協調を解決します。しかし、医療ステーションに看護師 5 名、医師 3 名、ロジスティクス担当 2 名がそれぞれ別の電話機で同時に作業している時、患者情報の一貫性を誰が保証するのか？ カーネル — クレジットカード サイズの Raspberry Pi が各ステーションのローカル サーバーとして稼働します。すべての電話機はステーションの Wi-Fi 経由で接続し、外部インターネットは不要、すべての PWA が同じデータをリアルタイム同期で共有します。
SDK — 同一デバイス間協調
共有コード ライブラリが単一デバイス上のすべての PWA にリアルタイム クロスタブ同期を提供
カーネル — 同一ステーション内協調
ローカル Raspberry Pi が単一ステーション内の複数デバイス間で患者データの単一ソースを共有
メッシュ — ステーション間協調
Hub-Spoke トポロジーによりステーション間で相互バックアップ、災害後の再構築が可能
Community Grid
CIRS EngineCommand center for community resilience. Orchestrate shelter operations, coordinate volunteer dispatch, delivery tracking (offline ledger + contract pricing)—all offline.
Medical Grid
MIRS EngineCritical medical data, even offline. Complete patient records, real-time triage classification, medication inventory tracking.
xGrid READY
Making resilience part of everyday life. Free offline-first supply management app for families.
Built for Every Role
From field medics to command center operators, De Novo xGrid adapts to your workflow.
Clinical Ops
Seamless patient handoff from field to hospital. Offline triage, prescriptions, and medical records.
Logistics Ops
Real-time inventory visibility across all nodes. Track supplies, medications, and equipment status.
What is a PWA?
A website that installs like an app. No app store needed — just visit and add to your home screen.
How Does It Work?
PWAs cache everything locally. Once installed, the app runs from your device, even without internet.
Why Does It Matter?
In disasters, networks fail first. PWAs keep working when you need them most — offline, reliable, instant.
Event Bus
Real-time cross-tab synchronization. When a nurse updates a patient status, doctors see it instantly.
Unified API
Standardized communication protocol with automatic retry, timeout handling, and error recovery.
Offline Queue
Operations continue seamlessly without internet. Data syncs automatically when connection returns.
Started November 2025, built a complete resilience ecosystem in 3 months
Kernel (本地伺服器)
Unlocked: 各ステーションのローカル サーバーとしての Raspberry Pi — それがカーネルです。すべてのステーション電話機がステーション Wi-Fi 経由で接続し、PWA は単一のデータ ソースを共有します。SDK、メッシュ、xGrid プラットフォーム全体はこの基盤の上に構築されています。
MIRS v2.0
Unlocked: Offline-first anesthesia records, equipment tracking, blood bank
HIRS + CIRS
Unlocked: Home preparedness + community shelter management
PWA Fleet
Unlocked: 15+ role-specific PWA interfaces
De Novo xGrid SDK
Unlocked: Unified offline queue, Event Bus standardization
Walkaway Test
Unlocked: Data sovereignty validation passed
Lifeboat Protocol
Unlocked: Edge devices can rebuild central hub
De Novo xGrid™
Unlocked: Medical appliance, bus factor approaching infinity
Medical Grid v5.1
Unlocked: 136-step E2E test: 135 pass, 0 fail, 0 gap. Station consolidation validated.
Medical Grid v6.0
Unlocked: LSCO battlefield medicine: 8 modules complete. 149-step E2E across 10 scenarios.
Medical Grid v6.5
Unlocked: 173-step E2E: 172 pass, 0 fail. CIRS Walkaway DR, Cross-Proxy API, idempotent sync, LSCO walkaway coverage verified 17/17.
Medical Grid v7.14
Unlocked: 649-step E2E across 6 suites. LSCO Readiness 4/4 complete: Sync 11P + DR 12P + Merge 13P + 72H 364P. 100% pass rate.