feat: multi-clinic Temetro Network with per-clinic identity (v0.8.0)

The relay is now multi-clinic. Each clinic authenticates to the /hub
namespace by signing a challenge with its own Ed25519 clinic signing key
(a per-clinic identity, not a shared RELAY_TOKEN), and the relay routes
every device response back to only the clinic that originated the request
(keyed by requestId) — so clinics never see each other's traffic.

Backend:
- clinic_signing_keys.network_enabled + GET/PUT /api/signing/network
  (owner/admin) to join/leave the network.
- relay-client keeps one authenticated hub connection per network-enabled
  org (connectOrg/disconnectOrg, hubs map keyed by orgId); emitToWallet/
  sendToWallet take orgId; offline flush is org-scoped.
- Wallet import/push return 409 until a clinic joins.
- RELAY_TOKEN is now optional/legacy (open relay needs no shared secret).

Frontend:
- "Join Temetro Network" toggle in Settings → Signing, localized in all
  five languages (en, fr, de, so, ar).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -7,6 +7,49 @@ for how releases are cut and published.
 
 ## [Unreleased]
 
+## [0.8.0] — 2026-07-05
+
+### Added
+- **Multi-clinic Temetro Network.** The relay now serves many self-hosted clinics at once. Each
+  clinic authenticates to the `/hub` namespace by **signing a challenge with its own Ed25519 clinic
+  signing key** (`services/signing.ts`) — a per-clinic identity, not a shared password — and the
+  relay routes every device response back to only the clinic that originated the request (keyed by
+  `requestId`), so clinics never see each other's traffic. `wallet:online` is fanned out only to
+  clinics with pending work for that wallet.
+- **"Join Temetro Network" opt-in.** A per-clinic toggle in **Settings → Signing** (backed by
+  `clinic_signing_keys.network_enabled`, `GET`/`PUT /api/signing/network`, owner/admin only). Off by
+  default; enabling opens the clinic's relay connection, disabling tears it down. Wallet
+  import/push endpoints return **409** while a clinic hasn't joined. Localised in all five languages.
+
+### Changed
+- **The backend keeps one authenticated relay connection per network-enabled org**
+  (`services/relay-client.ts` — `connectOrg`/`disconnectOrg`, a `hubs` map keyed by `orgId`), instead
+  of a single shared-token connection. `emitToWallet`/`sendToWallet` now take an `orgId`, and the
+  offline-flush (`pendingUpdatesForWallet`) is org-scoped.
+- **`RELAY_TOKEN` is now optional/legacy.** Clinics authenticate with their signing key, so an open
+  relay needs no shared secret; `RELAY_TOKEN` only gates an optional *private* relay.
+
+## [0.7.0] — 2026-07-05
+
+### Added
+- **Temetro Network** — a standalone, high-performance **relay** (Rust + Axum + socketioxide) that
+  connects the backend to patient wallet apps, in its own repo
+  ([github.com/temetro/temetro-network](https://github.com/temetro/temetro-network)) and deployable
+  on Railway. It replaces the flaky Cloudflare quick-tunnel that used to expose the backend's
+  embedded `/wallet` Socket.io namespace to phones. The relay is a **dumb, stateless pipe**: a
+  `/wallet` namespace for devices (challenge/Ed25519-signature auth, room keyed by wallet number)
+  and a `RELAY_TOKEN`-authenticated `/hub` namespace for the backend. It forwards sealed ciphertext
+  verbatim, keeps no database, and its only crypto is verifying a device's auth signature (proven
+  byte-for-byte compatible with `wallet-crypto.ts`).
+
+### Changed
+- **The backend is now a client of the relay, not the wallet server.** The `/wallet` Socket.io
+  namespace was removed from `src/realtime.ts`; a new `src/services/relay-client.ts` connects to the
+  relay's `/hub` (`emitToWallet` delegates to its `sendToWallet`), handles device responses
+  (`wallet:share-response` / `wallet:update-response` / `wallet:revoke`) and flushes missed updates on
+  `wallet:online` — calling the same `wallet-share` / `wallet-updates` services as before. New
+  `RELAY_URL` + `RELAY_TOKEN` env vars; the wallet-import QR now points at `RELAY_URL`.
+
 ## [0.6.0] — 2026-07-04
 
 ### Added

CLAUDE.md

@@ -27,12 +27,13 @@ repository (published as `temetro`).
 > "Patient wallet app" below) and an end-to-end **encrypted share / patient-approval** flow:
 > clinics hold a real **Ed25519 signing key** (Settings → Signing, `backend/src/services/signing.ts`),
 > and "Import from a patient app" on the Patients page relays an encrypted request to the wallet over
-> a **`/wallet` Socket.io namespace**, the patient approves on their phone, and the sealed record is
-> imported (with optional **temporary share + auto-delete**). See `backend/src/routes/{signing,patients-wallet}.ts`.
+> the **Temetro Network** relay (see below), the patient approves on their phone, and the sealed record
+> is imported (with optional **temporary share + auto-delete**). Clinic→wallet **record-update push**
+> and **QR pairing** are built too. See `backend/src/routes/{signing,patients-wallet}.ts`.
 >
-> **Still vision, not built:** clinic→wallet push of signed record updates, in-app record editing,
-> QR pairing, and cryptographic time-boxing of temporary shares. The AI chat is still **mock replies**.
-> Email verification is wired but currently **not enforced** at sign-in (see `backend/CLAUDE.md`).
+> **Still vision, not built:** in-app record editing and cryptographic time-boxing of temporary
+> shares. The AI chat is still **mock replies**. Email verification is wired but currently **not
+> enforced** at sign-in (see `backend/CLAUDE.md`).
 
 ## Patient wallet app (sibling repo `~/Desktop/temetro-app`)
 
@@ -47,6 +48,28 @@ here means keys + data live on the patient's device and the relay only ever forw
 is **not** a literal blockchain (records are off-chain, which is also what lets a temporary share be
 deleted). Commit/push that app inside its own repo, separately from this one.
 
+## Temetro Network (sibling repo/folder `~/Desktop/Temetro-network`)
+
+The **relay** that connects this backend to patient wallet apps. It is its **own git repo** on the
+Desktop (folder `~/Desktop/Temetro-network`, pushed to `github.com/temetro/temetro-network`), **not**
+in this monorepo — a standalone **Rust + Axum + socketioxide** service meant to run always-on (e.g.
+on **Railway**). It replaces the old flaky Cloudflare quick-tunnel that used to expose the backend's
+embedded `/wallet` Socket.io namespace to phones.
+
+It is a **dumb, stateless pipe**: two Socket.io namespaces — `/wallet` for devices
+(challenge/Ed25519-signature auth, room keyed by wallet number) and `/hub` for this backend
+(`RELAY_TOKEN`-authenticated). Devices and the backend both connect to it; it **forwards sealed
+ciphertext verbatim** and never opens bundles or touches a database. Its only crypto is verifying a
+device's auth signature (mirrors `backend/src/lib/wallet-crypto.ts`). The backend connects to it as a
+`/hub` client via `backend/src/services/relay-client.ts` (its `sendToWallet` is what `emitToWallet`
+now calls); configure with `RELAY_URL` + `RELAY_TOKEN`. Commit/push that service inside its own repo,
+separately from this one.
+
+> **Note:** in this sandbox the `~/Desktop/Temetro-network` folder blocks directory enumeration
+> (`ls`/`getcwd`/git inside it return EPERM) though plain file writes work. Develop/build/commit it
+> in an accessible copy and mirror the tree in with `tar`; drive git there via
+> `GIT_DIR`/`GIT_WORK_TREE` from an accessible cwd.
+
 ## Layout
 
 `frontend/` and `backend/` were previously separate per-folder git repos; they have been **merged

backend/.env.example

@@ -32,13 +32,19 @@ POSTGRES_PORT=5432
 BACKEND_PORT=4000
 FRONTEND_PORT=3000
 
-# --- Patient wallet relay -------------------------------------------------
-# The URL baked into the QR a patient scans to import their record. Their phone
-# must be able to reach it — so localhost will NOT work from a real device. If
-# unset, the backend derives it from the request host (fine when you open the
-# web app over your LAN IP, e.g. http://192.168.1.20:3000). Otherwise set it
-# explicitly to a phone-reachable address: your machine's LAN IP or a public
-# tunnel URL.
+# --- Temetro Network relay ------------------------------------------------
+# The standalone relay (github.com/temetro/temetro-network) that connects this
+# backend to patient phones. Deploy it (e.g. on Railway) and point both this
+# backend and the wallet app at it. RELAY_URL is the relay's public URL (also
+# baked into the QR a patient scans). This clinic authenticates to the relay's
+# /hub with its own Ed25519 signing key, so no shared secret is needed.
+# RELAY_TOKEN is OPTIONAL/LEGACY — set it only for a private relay that also
+# gates on a shared token (then use the SAME value here and on the relay).
+RELAY_URL=http://localhost:8080
+RELAY_TOKEN=
+
+# (Legacy, pre-relay self-hosting.) A phone-reachable URL for the QR when NOT
+# using the Temetro Network relay. RELAY_URL takes precedence over this.
 # PUBLIC_RELAY_URL=http://192.168.1.20:4000
 
 # --- Email (optional) -----------------------------------------------------

backend/CLAUDE.md

@@ -60,6 +60,18 @@ No test runner is configured. Verify by running the stack (`docker compose up`)
 - **Real-time** lives in **`src/realtime.ts`** — a Socket.io server attached to the same HTTP server
   in `index.ts`; the handshake reuses Better Auth's `getSession`. Other modules push via
   `emitToUser` / `emitToConversation` (no direct socket import, so no circular deps).
+- **Patient-wallet relay** is **no longer hosted here.** Devices connect to the standalone **Temetro
+  Network** service (`~/Desktop/Temetro-network`, see root `CLAUDE.md`), which is **multi-clinic**.
+  This backend connects to it as a `/hub` client in **`src/services/relay-client.ts`**, keeping **one
+  authenticated connection per network-enabled org** (`hubs` map keyed by `orgId`). Each org
+  authenticates by signing the relay's `hub:challenge` with its clinic signing key
+  (`signWithClinicKey`) — no shared `RELAY_TOKEN` needed (it's now optional/legacy, only for a
+  private relay). `emitToWallet(orgId, …)` (realtime.ts) delegates to `sendToWallet(orgId, …)`, and
+  device responses (`wallet:share-response` / `wallet:update-response` / `wallet:revoke`) +
+  `wallet:online` replay are handled per-org there, calling the same `wallet-share` /
+  `wallet-updates` services the old `/wallet` namespace did. A clinic opts in via **"Join Temetro
+  Network"** (Settings → Signing → `PUT /api/signing/network`, `clinic_signing_keys.network_enabled`);
+  `connectOrg`/`disconnectOrg` open/close its connection, and wallet routes 409 when it's off.
 - **`src/lib/email.ts`** — `sendEmail` logs links to the console when SMTP is unset.
 
 ## Gotchas / conventions

backend/docker-compose.yml

@@ -68,6 +68,11 @@ services:
       BETTER_AUTH_URL: http://localhost:4000
       FRONTEND_URL: http://localhost:3000
       PORT: "4000"
+      # Temetro Network relay (github.com/temetro/temetro-network). Set RELAY_URL
+      # to your deployed relay's public URL and RELAY_TOKEN to the shared secret
+      # you configured on it — both are required for patient-wallet import.
+      RELAY_URL: ${RELAY_URL:-}
+      RELAY_TOKEN: ${RELAY_TOKEN:-}
       NODE_ENV: production
       # Uploaded patient/lab files live here, on the temetro_uploads volume.
       UPLOAD_DIR: /var/lib/temetro/uploads

backend/drizzle/0032_closed_dakota_north.sql

@@ -0,0 +1 @@
+ALTER TABLE "clinic_signing_keys" ADD COLUMN "network_enabled" boolean DEFAULT false NOT NULL;

backend/drizzle/meta/_journal.json

@@ -225,6 +225,13 @@
       "when": 1783117115021,
       "tag": "0031_stiff_gateway",
       "breakpoints": true
+    },
+    {
+      "idx": 32,
+      "version": "7",
+      "when": 1783263738631,
+      "tag": "0032_closed_dakota_north",
+      "breakpoints": true
     }
   ]
 }

backend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "temetro-backend",
-  "version": "0.1.0",
+  "version": "0.6.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "temetro-backend",
-      "version": "0.1.0",
+      "version": "0.6.0",
       "license": "MIT",
       "dependencies": {
         "@ai-sdk/anthropic": "^3.0.84",
@@ -28,6 +28,7 @@
         "nodemailer": "^8.0.10",
         "pg": "^8.21.0",
         "socket.io": "^4.8.3",
+        "socket.io-client": "^4.8.3",
         "zod": "^4.4.3"
       },
       "devDependencies": {
@@ -3339,6 +3340,40 @@
         "node": ">=10.2.0"
       }
     },
+    "node_modules/engine.io-client": {
+      "version": "6.6.6",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-6.6.6.tgz",
+      "integrity": "sha512-iY6QdftLQ9pyiPoX082bpf/u1UewnOaJrtJIF9T0++QB34lZrj0uP+Q/bj8AlUsAxqhnkTV2BS8SBZSxOmoV5Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.4.1",
+        "engine.io-parser": "~5.2.1",
+        "ws": "~8.21.0",
+        "xmlhttprequest-ssl": "~2.1.1"
+      }
+    },
+    "node_modules/engine.io-client/node_modules/ws": {
+      "version": "8.21.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.21.0.tgz",
+      "integrity": "sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/engine.io-parser": {
       "version": "5.2.3",
       "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.3.tgz",
@@ -4947,6 +4982,21 @@
         "ws": "~8.20.1"
       }
     },
+    "node_modules/socket.io-client": {
+      "version": "4.8.3",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-4.8.3.tgz",
+      "integrity": "sha512-uP0bpjWrjQmUt5DTHq9RuoCBdFJF10cdX9X+a368j/Ft0wmaVgxlrjvK3kjvgCODOMMOz9lcaRzxmso0bTWZ/g==",
+      "license": "MIT",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.4.1",
+        "engine.io-client": "~6.6.1",
+        "socket.io-parser": "~4.2.4"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/socket.io-parser": {
       "version": "4.2.6",
       "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.6.tgz",
@@ -5779,6 +5829,14 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/xmlhttprequest-ssl": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.1.2.tgz",
+      "integrity": "sha512-TEU+nJVUUnA4CYJFLvK5X9AOeH4KvDvhIfm0vV1GaQRtchnG0hgK5p8hw/xjv8cunWYCsiPCSDzObPyhEwq3KQ==",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "temetro-backend",
-  "version": "0.6.0",
+  "version": "0.8.0",
   "private": true,
   "type": "module",
   "description": "temetro backend — Express + Postgres API with Better Auth (email/password, organizations) and org-scoped patient records.",
@@ -41,6 +41,7 @@
     "nodemailer": "^8.0.10",
     "pg": "^8.21.0",
     "socket.io": "^4.8.3",
+    "socket.io-client": "^4.8.3",
     "zod": "^4.4.3"
   },
   "devDependencies": {

backend/src/db/schema/signing.ts

@@ -1,4 +1,4 @@
-import { pgTable, text, timestamp } from "drizzle-orm/pg-core";
+import { boolean, pgTable, text, timestamp } from "drizzle-orm/pg-core";
 
 import { organization } from "./auth.js";
 
@@ -16,6 +16,11 @@ export const clinicSigningKeys = pgTable("clinic_signing_keys", {
   fingerprint: text("fingerprint").notNull(),
   // Encrypted (lib/crypto.ts) hex of the Ed25519 private key.
   privateKeyEnc: text("private_key_enc").notNull(),
+  // Whether this clinic has joined the Temetro Network relay ("Join Temetro
+  // Network" in Settings → Signing). Off by default: only when enabled does the
+  // backend open this clinic's relay hub connection and expose wallet features.
+  // The relay identity *is* this signing key, so the flag lives on the same row.
+  networkEnabled: boolean("network_enabled").notNull().default(false),
   createdAt: timestamp("created_at").defaultNow().notNull(),
   rotatedAt: timestamp("rotated_at"),
 });

backend/src/env.ts

@@ -28,6 +28,15 @@ const schema = z.object({
   // Overrides the version reported by GET /api/version. Normally derived from
   // package.json; the release pipeline can pin it explicitly.
   APP_VERSION: z.string().optional(),
+  // Temetro Network relay (github.com/temetro/temetro-network). Both this
+  // backend and patient phones connect to it; it routes the encrypted wallet
+  // messages between them. RELAY_URL is the relay's public URL (also baked into
+  // the QR a patient scans). Each clinic authenticates to the relay's /hub with
+  // its own Ed25519 signing key, so no shared secret is needed. RELAY_TOKEN is
+  // now *optional/legacy* — set it only for a private relay that also gates on a
+  // shared token (must then match the relay's RELAY_TOKEN).
+  RELAY_URL: z.string().min(1).default("http://localhost:8080"),
+  RELAY_TOKEN: z.string().default(""),
   // Public, device-reachable URL of this backend's wallet relay, baked into the
   // QR a patient scans. Optional — when unset we derive it from the request host
   // (so opening the web app over the LAN yields a reachable LAN URL).
@@ -80,6 +89,9 @@ if (env.NODE_ENV === "production") {
     );
     process.exit(1);
   }
+  // RELAY_TOKEN is optional now: clinics authenticate to the relay with their
+  // own Ed25519 signing key, so an unset token is the normal "open relay" case —
+  // no warning needed.
 }
 
 export const isProd = env.NODE_ENV === "production";

backend/src/index.ts

@@ -36,6 +36,7 @@ import { staffRouter } from "./routes/staff.js";
 import { networkRouter } from "./routes/network.js";
 import { tasksRouter } from "./routes/tasks.js";
 import { versionRouter } from "./routes/version.js";
+import { initRelayClient } from "./services/relay-client.js";
 import { beginQuickTunnelDiscovery } from "./services/relay-url.js";
 import { sweepExpiredShares } from "./services/wallet-share.js";
 
@@ -123,6 +124,11 @@ app.use(errorHandler);
 const server = createServer(app);
 initRealtime(server);
 
+// Connect to the Temetro Network relay (the device-facing hub). Patient phones
+// no longer connect to this backend directly — they connect to the relay, and
+// we push to / receive from them over its /hub namespace.
+initRelayClient();
+
 // Sweep expired temporary patient-wallet shares (auto-delete) every 5 minutes.
 const SHARE_SWEEP_INTERVAL = 5 * 60 * 1000;
 setInterval(() => {
@@ -154,7 +160,7 @@ server.listen(env.PORT, () => {
   console.log(`  • portal:   /api/portal  (public clinic kiosk)`);
   console.log(`  • fhir:     /fhir  (read-only FHIR R4 server, API-key auth)`);
   console.log(`  • signing:  /api/signing  (Ed25519 clinic key)`);
-  console.log(`  • wallet:   /api/patients/wallet  (+ /wallet socket relay)`);
+  console.log(`  • wallet:   /api/patients/wallet  (via Temetro Network relay: ${env.RELAY_URL})`);
 });
 
 // Dockerized off-network testing: learn our public Cloudflare quick-tunnel URL

backend/src/realtime.ts

@@ -1,17 +1,14 @@
 import type { Server as HttpServer } from "node:http";
 
 import { fromNodeHeaders } from "better-auth/node";
-import { bytesToHex, randomBytes, utf8ToBytes } from "@noble/hashes/utils.js";
 import { Server, type Socket } from "socket.io";
 
 import { auth } from "./auth.js";
 import { env } from "./env.js";
-import { decodeWalletNumber, verifySignature } from "./lib/wallet-crypto.js";
 import * as meetings from "./services/meetings.js";
 import * as messaging from "./services/messaging.js";
 import { createNotification } from "./services/notifications.js";
-import * as walletShare from "./services/wallet-share.js";
-import * as walletUpdates from "./services/wallet-updates.js";
+import { sendToWallet } from "./services/relay-client.js";
 import type { MessageAttachment } from "./types/messaging.js";
 
 let io: Server | null = null;
@@ -20,7 +17,6 @@ const userRoom = (userId: string) => `user:${userId}`;
 const convRoom = (conversationId: string) => `conv:${conversationId}`;
 const callRoom = (roomId: string) => `call:${roomId}`;
 const orgRoom = (orgId: string) => `org:${orgId}`;
-const walletRoom = (walletNumber: string) => `wallet:${walletNumber}`;
 
 // Mesh WebRTC tops out around four peers (each sends its stream to every other);
 // past that the room is closed to new joiners.
@@ -44,15 +40,18 @@ export function emitToConversation(
   io?.to(convRoom(conversationId)).emit(event, data);
 }
 
-// Relay an end-to-end-encrypted message to a patient wallet device (the /wallet
-// namespace, room keyed by wallet number). The relay only ever forwards
-// ciphertext — it cannot read the record bundle.
+// Relay an end-to-end-encrypted message to a patient wallet device. Devices no
+// longer connect to this server directly — they connect to the standalone
+// Temetro Network relay, which forwards to the room keyed by wallet number. We
+// push over the relay's /hub namespace (see services/relay-client.ts). The
+// relay only ever forwards ciphertext — it cannot read the record bundle.
 export function emitToWallet(
+  orgId: string,
   walletNumber: string,
   event: string,
   data: unknown,
 ): void {
-  io?.of("/wallet").to(walletRoom(walletNumber)).emit(event, data);
+  sendToWallet(orgId, walletNumber, event, data);
 }
 
 type Ack = (response: { ok: boolean; [key: string]: unknown }) => void;
@@ -286,151 +285,5 @@ export function initRealtime(httpServer: HttpServer): Server {
     });
   });
 
-  // --- Patient wallet relay (/wallet namespace) ----------------------------
-  // Devices have no clinic session, so this namespace is NOT cookie-gated.
-  // Instead a device proves control of its wallet keypair: the server issues a
-  // random challenge, the device signs it with its Ed25519 key, and only then
-  // may it join its own wallet room. The relay forwards encrypted share
-  // requests/responses without ever reading the record bundle.
-  const walletNs = io.of("/wallet");
-  walletNs.on("connection", (socket: Socket) => {
-    const challenge = bytesToHex(randomBytes(32));
-    socket.data.challenge = challenge;
-    socket.data.walletNumber = null as string | null;
-    socket.emit("wallet:challenge", { challenge });
-
-    socket.on(
-      "wallet:auth",
-      (payload: { walletNumber?: string; signature?: string }, ack?: Ack) => {
-        try {
-          const walletNumber = String(payload?.walletNumber ?? "");
-          const signature = String(payload?.signature ?? "");
-          const publicKey = decodeWalletNumber(walletNumber);
-          const ok = verifySignature(
-            publicKey,
-            signature,
-            utf8ToBytes(socket.data.challenge as string),
-          );
-          if (!ok) {
-            ack?.({ ok: false });
-            return;
-          }
-          socket.data.walletNumber = walletNumber;
-          socket.join(walletRoom(walletNumber));
-          ack?.({ ok: true });
-          // Deliver any record updates the device missed while offline. Sent
-          // after the ack so the client is ready to receive them.
-          void walletUpdates
-            .pendingUpdatesForWallet(walletNumber)
-            .then(async (rows) => {
-              for (const row of rows) {
-                socket.emit("wallet:update-request", await walletUpdates.toEvent(row));
-                await walletUpdates.markDelivered(row.id);
-              }
-            })
-            .catch(() => {});
-        } catch {
-          ack?.({ ok: false });
-        }
-      },
-    );
-
-    // The patient approved/denied a clinic→wallet record update on their device.
-    // We verify the wallet's signature over the decision and resolve the row.
-    socket.on(
-      "wallet:update-response",
-      async (
-        payload: {
-          requestId?: string;
-          walletNumber?: string;
-          decision?: "approved" | "denied";
-          signature?: string;
-        },
-        ack?: Ack,
-      ) => {
-        try {
-          if (
-            !socket.data.walletNumber ||
-            socket.data.walletNumber !== payload?.walletNumber
-          ) {
-            ack?.({ ok: false });
-            return;
-          }
-          const view = await walletUpdates.applyUpdateResponse(
-            String(payload?.requestId ?? ""),
-            String(payload?.walletNumber ?? ""),
-            payload?.decision === "approved" ? "approved" : "denied",
-            payload?.signature,
-          );
-          ack?.({ ok: !!view });
-        } catch (err) {
-          ack?.({ ok: false, error: (err as Error).message });
-        }
-      },
-    );
-
-    // The patient approved/denied a share on their device; the sealed bundle (if
-    // approved) rides along and is decrypted + verified server-side.
-    socket.on(
-      "wallet:share-response",
-      async (
-        payload: {
-          requestId?: string;
-          walletNumber?: string;
-          decision?: "approved" | "denied";
-          sealed?: string;
-          signature?: string;
-        },
-        ack?: Ack,
-      ) => {
-        try {
-          if (
-            !socket.data.walletNumber ||
-            socket.data.walletNumber !== payload?.walletNumber
-          ) {
-            ack?.({ ok: false });
-            return;
-          }
-          const view = await walletShare.applyShareResponse(
-            String(payload?.requestId ?? ""),
-            String(payload?.walletNumber ?? ""),
-            payload?.decision === "approved" ? "approved" : "denied",
-            payload?.sealed,
-            payload?.signature,
-          );
-          ack?.({ ok: !!view });
-        } catch (err) {
-          ack?.({ ok: false, error: (err as Error).message });
-        }
-      },
-    );
-
-    // The patient revoked a previously shared record; delete it from the clinic.
-    socket.on(
-      "wallet:revoke",
-      async (
-        payload: { requestId?: string; walletNumber?: string },
-        ack?: Ack,
-      ) => {
-        try {
-          if (
-            !socket.data.walletNumber ||
-            socket.data.walletNumber !== payload?.walletNumber
-          ) {
-            ack?.({ ok: false });
-            return;
-          }
-          const result = await walletShare.revokeShare(
-            String(payload?.requestId ?? ""),
-            String(payload?.walletNumber ?? ""),
-          );
-          ack?.({ ok: !!result });
-        } catch {
-          ack?.({ ok: false });
-        }
-      },
-    );
-  });
-
   return io;
 }

backend/src/routes/patients-wallet.ts

@@ -19,6 +19,7 @@ import { emitToWallet } from "../realtime.js";
 import { recordActivity } from "../services/activity.js";
 import * as patientService from "../services/patients.js";
 import { awaitQuickTunnelUrl } from "../services/relay-url.js";
+import { getNetworkEnabled } from "../services/signing.js";
 import * as walletShare from "../services/wallet-share.js";
 import * as walletUpdates from "../services/wallet-updates.js";
 
@@ -26,10 +27,25 @@ export const patientsWalletRouter = Router();
 
 patientsWalletRouter.use(requireAuth, requireOrg);
 
+// Wallet sharing rides the Temetro Network relay, which a clinic must opt into
+// ("Join Temetro Network" in Settings → Signing). Guard the actions that need a
+// live relay connection so a disabled clinic gets a clear message, not silence.
+async function requireNetwork(orgId: string): Promise<void> {
+  if (!(await getNetworkEnabled(orgId))) {
+    throw new HttpError(
+      409,
+      "This clinic hasn't joined the Temetro Network. Enable it in Settings → Signing to share with patient wallets.",
+    );
+  }
+}
+
 // The device-reachable URL the patient's app should connect to (baked into the
-// QR). Prefer an explicit PUBLIC_RELAY_URL; otherwise derive it from the request
-// host so that opening the web app over the LAN yields a reachable LAN URL.
+// QR). Devices connect to the standalone Temetro Network relay — the same relay
+// this backend is hubbed to — so RELAY_URL is the canonical answer. The legacy
+// PUBLIC_RELAY_URL / cloudflared / request-host fallbacks remain for pre-relay
+// self-hosting.
 async function resolveRelayUrl(req: Request): Promise<string> {
+  if (env.RELAY_URL) return env.RELAY_URL;
   if (env.PUBLIC_RELAY_URL) return env.PUBLIC_RELAY_URL;
   // A cloudflared quick tunnel (`npm run docker:tunnel`). Wait briefly for it to
   // become reachable so the QR never carries a not-yet-live URL.
@@ -94,6 +110,7 @@ patientsWalletRouter.post(
   requirePermission({ patient: ["write"] }),
   async (req, res, next) => {
     try {
+      await requireNetwork(req.organizationId!);
       const input = requestSchema.parse(req.body);
       const { view, ephemeralPubKey } = await walletShare.createShareRequest(
         req.organizationId!,
@@ -106,7 +123,7 @@ patientsWalletRouter.post(
         .select({ name: organization.name })
         .from(organization)
         .where(eq(organization.id, req.organizationId!));
-      emitToWallet(input.walletNumber, "wallet:share-request", {
+      emitToWallet(req.organizationId!, input.walletNumber, "wallet:share-request", {
         requestId: view.id,
         clinicName: org?.name ?? "A clinic",
         requestedBy: req.user!.name,
@@ -173,6 +190,7 @@ patientsWalletRouter.post(
   requirePermission({ patient: ["write"] }),
   async (req, res, next) => {
     try {
+      await requireNetwork(req.organizationId!);
       const input = pushSchema.parse(req.body);
       const row = await walletUpdates.createRecordUpdate(
         req.organizationId!,
@@ -181,7 +199,7 @@ patientsWalletRouter.post(
         input.changes,
       );
       const event = await walletUpdates.toEvent(row);
-      emitToWallet(row.walletNumber, "wallet:update-request", event);
+      emitToWallet(req.organizationId!, row.walletNumber, "wallet:update-request", event);
       await recordActivity({
         orgId: req.organizationId!,
         actor: { id: req.user!.id, name: req.user!.name },

backend/src/routes/signing.ts

@@ -1,4 +1,5 @@
 import { Router } from "express";
+import { z } from "zod";
 
 import {
   requireAuth,
@@ -6,6 +7,7 @@ import {
   requirePermission,
 } from "../middleware/auth.js";
 import { recordActivity } from "../services/activity.js";
+import { connectOrg, disconnectOrg } from "../services/relay-client.js";
 import * as signing from "../services/signing.js";
 import * as walletShare from "../services/wallet-share.js";
 
@@ -48,6 +50,52 @@ signingRouter.post(
   },
 );
 
+// Whether this clinic has joined the Temetro Network relay. Readable by any
+// clinician (the panel shows the toggle state + connection status).
+signingRouter.get(
+  "/network",
+  requirePermission({ patient: ["read"] }),
+  async (req, res, next) => {
+    try {
+      res.json({ enabled: await signing.getNetworkEnabled(req.organizationId!) });
+    } catch (err) {
+      next(err);
+    }
+  },
+);
+
+// Join / leave the Temetro Network — owner/admin only (same gate as key
+// rotation). Enabling opens this clinic's relay hub connection; disabling tears
+// it down.
+const networkSchema = z.object({ enabled: z.boolean() });
+
+signingRouter.put(
+  "/network",
+  requirePermission({ organization: ["update"] }),
+  async (req, res, next) => {
+    try {
+      const { enabled } = networkSchema.parse(req.body);
+      await signing.setNetworkEnabled(req.organizationId!, enabled);
+      if (enabled) {
+        await connectOrg(req.organizationId!);
+      } else {
+        disconnectOrg(req.organizationId!);
+      }
+      await recordActivity({
+        orgId: req.organizationId!,
+        actor: { id: req.user!.id, name: req.user!.name },
+        action: enabled
+          ? "Joined the Temetro Network"
+          : "Left the Temetro Network",
+        entityType: "settings",
+      });
+      res.json({ enabled });
+    } catch (err) {
+      next(err);
+    }
+  },
+);
+
 // Recent records shared from patient wallets — feeds the panel's shared-records
 // list.
 signingRouter.get(

backend/src/services/relay-client.ts

@@ -0,0 +1,200 @@
+// Client connection to the Temetro Network relay
+// (github.com/temetro/temetro-network), a standalone Rust service that routes
+// encrypted wallet messages between this backend and patient phones.
+//
+// This backend was previously the device-facing Socket.io server itself (the
+// `/wallet` namespace in realtime.ts). Now it is a *client* of the relay's
+// `/hub` namespace: it pushes messages to devices via `sendToWallet` and handles
+// their responses here, calling the same wallet service functions the old socket
+// handlers did. Sealed bundles are decrypted here (we hold the ephemeral key);
+// the relay only ever forwards ciphertext.
+//
+// The relay is **multi-clinic**: each clinic (organization) authenticates to
+// `/hub` with its own Ed25519 signing key (a per-clinic identity, not a shared
+// password), and the relay routes each device response back only to the clinic
+// that originated the request. So this backend keeps **one hub connection per
+// network-enabled org**, opened when the org joins the network ("Join Temetro
+// Network" in Settings → Signing) and torn down when it leaves.
+
+import { io as connect, type Socket } from "socket.io-client";
+
+import { env } from "../env.js";
+import { networkEnabledOrgs, signWithClinicKey } from "./signing.js";
+import * as walletShare from "./wallet-share.js";
+import * as walletUpdates from "./wallet-updates.js";
+
+// One authenticated hub connection per network-enabled organization.
+const hubs = new Map<string, Socket>();
+
+type Ack = (response: { ok: boolean; [key: string]: unknown }) => void;
+
+// Push an end-to-end-encrypted message to a patient wallet device via the given
+// clinic's relay connection (the relay forwards it to the room keyed by wallet
+// number). A no-op if the clinic isn't on the network / not connected yet — the
+// device replays anything it missed on its next connect (see `wallet:online`).
+export function sendToWallet(
+  orgId: string,
+  walletNumber: string,
+  event: string,
+  data: unknown,
+): void {
+  hubs.get(orgId)?.emit("wallet:send", { walletNumber, event, data });
+}
+
+// Open (and authenticate) a hub connection for a clinic, if not already open.
+// Idempotent — safe to call on startup and again when an org joins the network.
+export async function connectOrg(orgId: string): Promise<void> {
+  if (hubs.has(orgId)) return;
+
+  const hub = connect(`${env.RELAY_URL}/hub`, {
+    transports: ["websocket"],
+    reconnection: true,
+    reconnectionDelayMax: 10_000,
+  });
+  hubs.set(orgId, hub);
+  registerHubHandlers(orgId, hub);
+}
+
+// Leave the network for a clinic: close and forget its hub connection.
+export function disconnectOrg(orgId: string): void {
+  const hub = hubs.get(orgId);
+  if (!hub) return;
+  hub.disconnect();
+  hubs.delete(orgId);
+}
+
+// Open a hub connection for every clinic already on the network. Called once at
+// startup; runtime joins/leaves go through connectOrg/disconnectOrg.
+export async function initRelayClient(): Promise<void> {
+  try {
+    const orgs = await networkEnabledOrgs();
+    await Promise.all(orgs.map((orgId) => connectOrg(orgId)));
+  } catch (err) {
+    console.warn(`Temetro Network: failed to open hub connections: ${(err as Error).message}`);
+  }
+}
+
+// Wire up auth + device-response handlers for one clinic's hub socket.
+function registerHubHandlers(orgId: string, hub: Socket): void {
+  // Authenticate by signing the relay's challenge with this clinic's signing
+  // key. `clinicId` is that key's public half (hex), which is how the relay
+  // identifies and routes to this clinic.
+  hub.on("hub:challenge", async (payload: { challenge?: string }) => {
+    const challenge = String(payload?.challenge ?? "");
+    if (!challenge) return;
+    try {
+      const { signature, publicKey } = await signWithClinicKey(
+        orgId,
+        new TextEncoder().encode(challenge),
+      );
+      hub.emit(
+        "hub:auth",
+        // `token` is only meaningful for a private relay (optional shared gate);
+        // an empty value is ignored by an open relay.
+        { clinicId: publicKey, signature, token: env.RELAY_TOKEN || undefined },
+        (ack: { ok?: boolean } | undefined) => {
+          if (ack?.ok) {
+            console.log(`Temetro Network: clinic ${orgId} authenticated on the relay`);
+          } else {
+            console.warn(`Temetro Network: relay rejected clinic ${orgId}`);
+          }
+        },
+      );
+    } catch (err) {
+      console.warn(`Temetro Network: failed to sign relay challenge for ${orgId}: ${(err as Error).message}`);
+    }
+  });
+
+  hub.on("connect_error", (err) => {
+    console.warn(`Temetro Network relay unreachable (${env.RELAY_URL}) for ${orgId}: ${err.message}`);
+  });
+
+  // A device authenticated on the relay — flush any record updates it missed
+  // while offline (scoped to this clinic; the relay only delivers this to
+  // clinics with pending work for the wallet).
+  hub.on("wallet:online", async (payload: { walletNumber?: string }) => {
+    const walletNumber = String(payload?.walletNumber ?? "");
+    if (!walletNumber) return;
+    try {
+      const rows = await walletUpdates.pendingUpdatesForWallet(orgId, walletNumber);
+      for (const row of rows) {
+        sendToWallet(orgId, walletNumber, "wallet:update-request", await walletUpdates.toEvent(row));
+        await walletUpdates.markDelivered(row.id);
+      }
+    } catch {
+      /* best-effort */
+    }
+  });
+
+  // The patient approved/denied a clinic→wallet record update. Verify the
+  // wallet's signature over the decision and resolve the row.
+  hub.on(
+    "wallet:update-response",
+    async (
+      payload: {
+        requestId?: string;
+        walletNumber?: string;
+        decision?: "approved" | "denied";
+        signature?: string;
+      },
+      ack?: Ack,
+    ) => {
+      try {
+        const view = await walletUpdates.applyUpdateResponse(
+          String(payload?.requestId ?? ""),
+          String(payload?.walletNumber ?? ""),
+          payload?.decision === "approved" ? "approved" : "denied",
+          payload?.signature,
+        );
+        ack?.({ ok: !!view });
+      } catch (err) {
+        ack?.({ ok: false, error: (err as Error).message });
+      }
+    },
+  );
+
+  // The patient approved/denied a share; the sealed bundle (if approved) rides
+  // along and is decrypted + verified here.
+  hub.on(
+    "wallet:share-response",
+    async (
+      payload: {
+        requestId?: string;
+        walletNumber?: string;
+        decision?: "approved" | "denied";
+        sealed?: string;
+        signature?: string;
+      },
+      ack?: Ack,
+    ) => {
+      try {
+        const view = await walletShare.applyShareResponse(
+          String(payload?.requestId ?? ""),
+          String(payload?.walletNumber ?? ""),
+          payload?.decision === "approved" ? "approved" : "denied",
+          payload?.sealed,
+          payload?.signature,
+        );
+        ack?.({ ok: !!view });
+      } catch (err) {
+        ack?.({ ok: false, error: (err as Error).message });
+      }
+    },
+  );
+
+  // The patient revoked a previously shared record; delete it from the clinic.
+  hub.on(
+    "wallet:revoke",
+    async (payload: { requestId?: string; walletNumber?: string }, ack?: Ack) => {
+      try {
+        const result = await walletShare.revokeShare(
+          String(payload?.requestId ?? ""),
+          String(payload?.walletNumber ?? ""),
+        );
+        ack?.({ ok: !!result });
+      } catch {
+        ack?.({ ok: false });
+      }
+    },
+  );
+}

backend/src/services/signing.ts

@@ -74,6 +74,40 @@ export async function rotateKey(orgId: string): Promise<SigningKeyView> {
   return mintKey(orgId, true);
 }
 
+// Whether this clinic has joined the Temetro Network relay. Defaults to `false`
+// when the clinic has no signing key yet (it hasn't opted in).
+export async function getNetworkEnabled(orgId: string): Promise<boolean> {
+  const [row] = await db
+    .select({ networkEnabled: clinicSigningKeys.networkEnabled })
+    .from(clinicSigningKeys)
+    .where(eq(clinicSigningKeys.organizationId, orgId));
+  return row?.networkEnabled ?? false;
+}
+
+// Org ids of every clinic currently on the network — used at startup to open a
+// relay hub connection for each.
+export async function networkEnabledOrgs(): Promise<string[]> {
+  const rows = await db
+    .select({ organizationId: clinicSigningKeys.organizationId })
+    .from(clinicSigningKeys)
+    .where(eq(clinicSigningKeys.networkEnabled, true));
+  return rows.map((r) => r.organizationId);
+}
+
+// Join or leave the Temetro Network. Ensures the clinic has a signing key first
+// (the relay authenticates with it), then flips the flag. Returns the new state.
+export async function setNetworkEnabled(
+  orgId: string,
+  enabled: boolean,
+): Promise<boolean> {
+  await getOrCreateKey(orgId);
+  await db
+    .update(clinicSigningKeys)
+    .set({ networkEnabled: enabled })
+    .where(eq(clinicSigningKeys.organizationId, orgId));
+  return enabled;
+}
+
 // Sign a message with the clinic's signing key (creating one if needed). Returns
 // the signature + public key so a verifier can check provenance.
 export async function signWithClinicKey(

backend/src/services/wallet-updates.ts

@@ -144,7 +144,11 @@ export async function toEvent(row: UpdateRow): Promise<WalletUpdateEvent> {
 
 // Every unresolved update for a wallet — re-sent on each authenticated connect
 // so an offline device eventually receives what it missed.
+// Pending updates a wallet missed, scoped to one clinic — the relay delivers a
+// `wallet:online` over that clinic's own hub connection, so a clinic only ever
+// re-sends its *own* updates (never another clinic's).
 export async function pendingUpdatesForWallet(
+  orgId: string,
   walletNumber: string,
 ): Promise<UpdateRow[]> {
   return db
@@ -152,6 +156,7 @@ export async function pendingUpdatesForWallet(
     .from(walletRecordUpdates)
     .where(
       and(
+        eq(walletRecordUpdates.organizationId, orgId),
         eq(walletRecordUpdates.walletNumber, walletNumber),
         isNull(walletRecordUpdates.resolvedAt),
       ),

frontend/components/settings/settings-billing.tsx

@@ -6,6 +6,7 @@ import { useTranslation } from "react-i18next";
 import { cn } from "@/lib/utils";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
+import { Switch } from "@/components/ui/switch";
 import {
   CopyField,
   SettingsCard,
@@ -13,9 +14,11 @@ import {
   whiteButton,
 } from "@/components/settings/settings-parts";
 import {
+  getNetworkEnabled,
   getSigningKey,
   listSignedRecords,
   rotateSigningKey,
+  setNetworkEnabled,
   type SharedRecord,
   type SigningKey,
 } from "@/lib/signing";
@@ -38,6 +41,8 @@ export function SigningPanel() {
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
   const [rotating, setRotating] = useState(false);
+  const [networkOn, setNetworkOn] = useState(false);
+  const [networkSaving, setNetworkSaving] = useState(false);
 
   useEffect(() => {
     let active = true;
@@ -45,12 +50,14 @@ export function SigningPanel() {
       getSigningKey(),
       listSignedRecords().catch(() => []),
       listWalletUpdates().catch(() => []),
+      getNetworkEnabled().catch(() => false),
     ])
-      .then(([k, r, u]) => {
+      .then(([k, r, u, n]) => {
         if (!active) return;
         setKey(k);
         setRecords(r);
         setUpdates(u);
+        setNetworkOn(n);
         setError(null);
       })
       .catch(() => {
@@ -83,6 +90,32 @@ export function SigningPanel() {
     }
   };
 
+  const toggleNetwork = async (next: boolean) => {
+    setNetworkSaving(true);
+    // Optimistic — revert on failure.
+    setNetworkOn(next);
+    try {
+      const saved = await setNetworkEnabled(next);
+      setNetworkOn(saved);
+      notify.success(
+        next
+          ? t("settings.network.joinedTitle")
+          : t("settings.network.leftTitle"),
+        next
+          ? t("settings.network.joinedBody")
+          : t("settings.network.leftBody"),
+      );
+    } catch {
+      setNetworkOn(!next);
+      notify.error(
+        t("settings.network.errorTitle"),
+        t("settings.network.error"),
+      );
+    } finally {
+      setNetworkSaving(false);
+    }
+  };
+
   const recordStatusLabel = (status: SharedRecord["status"]): string =>
     t(
       `settings.signing.records.status${
@@ -137,6 +170,41 @@ export function SigningPanel() {
         </div>
       </SettingsCard>
 
+      <SettingsSection
+        description={t("settings.network.description")}
+        title={t("settings.network.title")}
+      >
+        <SettingsCard className="flex items-center justify-between gap-4 p-5">
+          <div className="min-w-0 space-y-0.5">
+            <div className="flex items-center gap-2">
+              <p className="text-sm font-medium">
+                {t("settings.network.toggleLabel")}
+              </p>
+              <Badge
+                className={cn(
+                  networkOn
+                    ? "bg-emerald-500/15 text-emerald-400"
+                    : "bg-muted text-muted-foreground",
+                )}
+              >
+                {networkOn
+                  ? t("settings.network.statusConnected")
+                  : t("settings.network.statusOff")}
+              </Badge>
+            </div>
+            <p className="text-sm text-muted-foreground">
+              {t("settings.network.toggleDesc")}
+            </p>
+          </div>
+          <Switch
+            aria-label={t("settings.network.toggleLabel")}
+            checked={networkOn}
+            disabled={loading || networkSaving}
+            onCheckedChange={toggleNetwork}
+          />
+        </SettingsCard>
+      </SettingsSection>
+
       <SettingsSection
         description={t("settings.signing.identityDescription")}
         title={t("settings.signing.identityTitle")}

frontend/lib/i18n/locales/ar/translation.json

@@ -1996,6 +1996,20 @@
         "errorTitle": "تعذّر إضافة العضو"
       }
     },
+    "network": {
+      "title": "شبكة Temetro",
+      "description": "يتيح مُرحّل شبكة Temetro لتطبيقات محفظة المرضى الاتصال بعيادتك لمشاركة السجلات والموافقة عليها — مشفّرة من طرف إلى طرف، مع تعريف عيادتك بمفتاح التوقيع الخاص بها.",
+      "toggleLabel": "الانضمام إلى شبكة Temetro",
+      "toggleDesc": "عند التفعيل، تتصل هذه العيادة بالمُرحّل لاستيراد السجلات من تطبيقات المرضى وإرسال التحديثات إلى محافظهم.",
+      "statusConnected": "متصل",
+      "statusOff": "معطّل",
+      "joinedTitle": "تم الانضمام إلى شبكة Temetro",
+      "joinedBody": "يمكن الآن لتطبيقات محفظة المرضى الاتصال بهذه العيادة.",
+      "leftTitle": "تم مغادرة شبكة Temetro",
+      "leftBody": "لم تعد هذه العيادة متصلة بالمُرحّل.",
+      "errorTitle": "تعذّر تحديث الوصول إلى الشبكة",
+      "error": "يرجى المحاولة مرة أخرى."
+    },
     "signing": {
       "keyTitle": "مفتاح التوقيع",
       "active": "نشط",

frontend/lib/i18n/locales/de/translation.json

@@ -1976,6 +1976,20 @@
         "errorTitle": "Mitglied konnte nicht hinzugefügt werden"
       }
     },
+    "network": {
+      "title": "Temetro-Netzwerk",
+      "description": "Das Temetro-Netzwerk-Relay ermöglicht es den Wallet-Apps der Patienten, sich mit Ihrer Praxis zu verbinden, um Akten zu teilen und zu genehmigen — Ende-zu-Ende-verschlüsselt, wobei Ihre Praxis über ihren Signierschlüssel identifiziert wird.",
+      "toggleLabel": "Temetro-Netzwerk beitreten",
+      "toggleDesc": "Wenn aktiviert, verbindet sich diese Praxis mit dem Relay, sodass Sie Akten aus Patienten-Apps importieren und Aktualisierungen an deren Wallets senden können.",
+      "statusConnected": "Verbunden",
+      "statusOff": "Aus",
+      "joinedTitle": "Temetro-Netzwerk beigetreten",
+      "joinedBody": "Wallet-Apps der Patienten können sich jetzt mit dieser Praxis verbinden.",
+      "leftTitle": "Temetro-Netzwerk verlassen",
+      "leftBody": "Diese Praxis ist nicht mehr mit dem Relay verbunden.",
+      "errorTitle": "Netzwerkzugriff konnte nicht aktualisiert werden",
+      "error": "Bitte versuchen Sie es erneut."
+    },
     "signing": {
       "keyTitle": "Signierschlüssel",
       "active": "Aktiv",

frontend/lib/i18n/locales/en/translation.json

@@ -1976,6 +1976,20 @@
         "errorTitle": "Could not add member"
       }
     },
+    "network": {
+      "title": "Temetro Network",
+      "description": "The Temetro Network relay lets patients' wallet apps connect to your clinic to share and approve records — end-to-end encrypted, with your clinic identified by its signing key.",
+      "toggleLabel": "Join Temetro Network",
+      "toggleDesc": "When on, this clinic connects to the relay so you can import records from patient apps and push updates to their wallets.",
+      "statusConnected": "Connected",
+      "statusOff": "Off",
+      "joinedTitle": "Joined the Temetro Network",
+      "joinedBody": "Patient wallet apps can now connect to this clinic.",
+      "leftTitle": "Left the Temetro Network",
+      "leftBody": "This clinic is no longer connected to the relay.",
+      "errorTitle": "Couldn't update network access",
+      "error": "Please try again."
+    },
     "signing": {
       "keyTitle": "Signing key",
       "active": "Active",

frontend/lib/i18n/locales/fr/translation.json

@@ -1976,6 +1976,20 @@
         "errorTitle": "Impossible d'ajouter le membre"
       }
     },
+    "network": {
+      "title": "Réseau Temetro",
+      "description": "Le relais Réseau Temetro permet aux applications portefeuille des patients de se connecter à votre clinique pour partager et approuver des dossiers — chiffrés de bout en bout, votre clinique étant identifiée par sa clé de signature.",
+      "toggleLabel": "Rejoindre le Réseau Temetro",
+      "toggleDesc": "Une fois activé, cette clinique se connecte au relais pour importer des dossiers depuis les applications des patients et envoyer des mises à jour vers leurs portefeuilles.",
+      "statusConnected": "Connecté",
+      "statusOff": "Désactivé",
+      "joinedTitle": "Réseau Temetro rejoint",
+      "joinedBody": "Les applications portefeuille des patients peuvent désormais se connecter à cette clinique.",
+      "leftTitle": "Réseau Temetro quitté",
+      "leftBody": "Cette clinique n'est plus connectée au relais.",
+      "errorTitle": "Impossible de mettre à jour l'accès au réseau",
+      "error": "Veuillez réessayer."
+    },
     "signing": {
       "keyTitle": "Clé de signature",
       "active": "Active",

frontend/lib/i18n/locales/so/translation.json

@@ -1976,6 +1976,20 @@
         "errorTitle": "Xubinta lama ku dari karin"
       }
     },
+    "network": {
+      "title": "Shabakadda Temetro",
+      "description": "Gudbiyaha Shabakadda Temetro wuxuu u oggolaanayaa abaabulka boorsada bukaannada inay ku xidhaan rugtaada si ay u wadaagaan oo u ansixiyaan diiwaannada — sir gaba-gabo ah, iyadoo rugtaada lagu aqoonsado furaheeda saxiixa.",
+      "toggleLabel": "Ku biir Shabakadda Temetro",
+      "toggleDesc": "Marka la shido, rugtan waxay ku xidhmaysaa gudbiyaha si aad u soo dejiso diiwaannada abaabulka bukaannada oo aad cusboonaysiin ugu dirto boorsadooda.",
+      "statusConnected": "La xidhiidhay",
+      "statusOff": "Daminaan",
+      "joinedTitle": "Waxaad ku biirtay Shabakadda Temetro",
+      "joinedBody": "Abaabulka boorsada bukaannada hadda way ku xidhmi karaan rugtan.",
+      "leftTitle": "Waxaad ka baxday Shabakadda Temetro",
+      "leftBody": "Rugtan hadda kuma xidhna gudbiyaha.",
+      "errorTitle": "Lama cusboonaysiin karin gelitaanka shabakadda",
+      "error": "Fadlan isku day mar kale."
+    },
     "signing": {
       "keyTitle": "Furaha saxiixa",
       "active": "Firfircoon",

frontend/lib/signing.ts

@@ -38,3 +38,21 @@ export async function rotateSigningKey(): Promise<SigningKey> {
 export async function listSignedRecords(): Promise<SharedRecord[]> {
   return apiFetch<SharedRecord[]>("/api/signing/records");
 }
+
+// Whether this clinic has joined the Temetro Network relay (patient-wallet
+// sharing rides it). Readable by any clinician.
+export async function getNetworkEnabled(): Promise<boolean> {
+  const { enabled } = await apiFetch<{ enabled: boolean }>(
+    "/api/signing/network",
+  );
+  return enabled;
+}
+
+// Join or leave the Temetro Network (owner/admin only). Returns the new state.
+export async function setNetworkEnabled(enabled: boolean): Promise<boolean> {
+  const res = await apiFetch<{ enabled: boolean }>("/api/signing/network", {
+    method: "PUT",
+    body: JSON.stringify({ enabled }),
+  });
+  return res.enabled;
+}

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "frontend",
-  "version": "0.6.0",
+  "version": "0.8.0",
   "private": true,
   "scripts": {
     "dev": "next dev",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "temetro",
-  "version": "0.6.0",
+  "version": "0.8.0",
   "private": true,
   "devDependencies": {
     "shadcn": "^4.11.0"