diff --git a/packages/auth/package.json b/packages/auth/package.json
index 668dd65..4811277 100644
--- a/packages/auth/package.json
+++ b/packages/auth/package.json
@@ -21,6 +21,7 @@
   },
   "dependencies": {
     "@repo/core-events": "workspace:*",
+    "@repo/core-realtime": "workspace:*",
     "@repo/core-shared": "workspace:*",
     "@trpc/server": "^11.0.0",
     "inversify": "^6.2.0",
diff --git a/packages/auth/src/di/bind-dev-seed.test.ts b/packages/auth/src/di/bind-dev-seed.test.ts
index 939b03d..28ee4dc 100644
--- a/packages/auth/src/di/bind-dev-seed.test.ts
+++ b/packages/auth/src/di/bind-dev-seed.test.ts
@@ -1,7 +1,8 @@
 import "reflect-metadata";
 import { afterEach, beforeEach, describe, expect, it } from "vitest";
 import { NoopTracer, NoopLogger } from "@repo/core-shared/instrumentation";
-import { RecordingEventBus, RecordingJobQueue } from "@repo/core-testing/instrumentation";
+import { RecordingEventBus, RecordingJobQueue, RecordingRealtimeBroadcaster } from "@repo/core-testing/instrumentation";
+import { RealtimeHandlerRegistry } from "@repo/core-realtime";
 import { bindDevSeedAuth } from "@/di/bind-dev-seed";
 import { authContainer } from "@/di/container";
 import { AUTH_SYMBOLS } from "@/di/symbols";
@@ -32,7 +33,7 @@ describe("bindDevSeedAuth", () => {
   });
 
   it("populates the repository with the dev users", async () => {
-    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue());
+    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue(), new RecordingRealtimeBroadcaster(), new RealtimeHandlerRegistry());
 
     const repo = authContainer.get<IUsersRepository>(
       AUTH_SYMBOLS.IUsersRepository,
@@ -45,7 +46,7 @@ describe("bindDevSeedAuth", () => {
   });
 
   it("seeds alice reachable by username", async () => {
-    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue());
+    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue(), new RecordingRealtimeBroadcaster(), new RealtimeHandlerRegistry());
 
     const repo = authContainer.get<IUsersRepository>(
       AUTH_SYMBOLS.IUsersRepository,
@@ -58,13 +59,13 @@ describe("bindDevSeedAuth", () => {
   });
 
   it("is idempotent — calling twice rebuilds a fresh populated repo", async () => {
-    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue());
+    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue(), new RecordingRealtimeBroadcaster(), new RealtimeHandlerRegistry());
     const before = authContainer.get<IUsersRepository>(
       AUTH_SYMBOLS.IUsersRepository,
     );
     const beforeAlice = await before.getUserByUsername("alice");
 
-    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue());
+    await bindDevSeedAuth(noop.tracer, noop.logger, new RecordingEventBus(), new RecordingJobQueue(), new RecordingRealtimeBroadcaster(), new RealtimeHandlerRegistry());
     const after = authContainer.get<IUsersRepository>(
       AUTH_SYMBOLS.IUsersRepository,
     );
diff --git a/packages/auth/src/di/bind-dev-seed.ts b/packages/auth/src/di/bind-dev-seed.ts
index 37f3d84..caa083f 100644
--- a/packages/auth/src/di/bind-dev-seed.ts
+++ b/packages/auth/src/di/bind-dev-seed.ts
@@ -6,6 +6,7 @@ import {
   type ILogger,
 } from "@repo/core-shared/instrumentation";
 import type { IEventBus } from "@repo/core-events";
+import type { IRealtimeBroadcaster, IRealtimeHandlerRegistry } from "@repo/core-realtime";
 import type { IJobQueue } from "@repo/core-shared/jobs";
 import { authContainer } from "./container.js";
 import { AUTH_SYMBOLS } from "./symbols.js";
@@ -38,6 +39,8 @@ export async function bindDevSeedAuth(
   logger: ILogger,
   bus: IEventBus,
   queue: IJobQueue,
+  realtime: IRealtimeBroadcaster,
+  realtimeRegistry: IRealtimeHandlerRegistry,
 ): Promise<void> {
   // Bind shared instrumentation into feature container
   if (authContainer.isBound(INSTRUMENTATION_SYMBOLS.TRACER)) {
@@ -151,6 +154,8 @@ export async function bindDevSeedAuth(
   // output at the <gen:event-handlers> / <gen:jobs> anchors below.
   void bus;
   void queue;
+  void realtime;
+  void realtimeRegistry;
   // <gen:event-handlers>
   // <gen:jobs>
   // <gen:realtime-handlers>
diff --git a/packages/auth/src/di/bind-production.ts b/packages/auth/src/di/bind-production.ts
index b498e61..759453a 100644
--- a/packages/auth/src/di/bind-production.ts
+++ b/packages/auth/src/di/bind-production.ts
@@ -7,6 +7,7 @@ import {
   type ILogger,
 } from "@repo/core-shared/instrumentation";
 import type { IEventBus } from "@repo/core-events";
+import type { IRealtimeBroadcaster, IRealtimeHandlerRegistry } from "@repo/core-realtime";
 import type { IJobQueue } from "@repo/core-shared/jobs";
 import { authContainer } from "./container";
 import { AUTH_SYMBOLS } from "./symbols";
@@ -29,6 +30,8 @@ export function bindProductionAuth(
   logger: ILogger,
   bus: IEventBus,
   queue: IJobQueue,
+  realtime: IRealtimeBroadcaster,
+  realtimeRegistry: IRealtimeHandlerRegistry,
 ): void {
   if (bound) return;
   bound = true;
@@ -149,6 +152,8 @@ export function bindProductionAuth(
   // output at the <gen:event-handlers> / <gen:jobs> anchors below.
   void bus;
   void queue;
+  void realtime;
+  void realtimeRegistry;
   // <gen:event-handlers>
   // <gen:jobs>
   // <gen:realtime-handlers>
diff --git a/packages/core-testing/src/instrumentation/recording-realtime-broadcaster.ts b/packages/core-testing/src/instrumentation/recording-realtime-broadcaster.ts
index 2ea6ce8..1151c47 100644
--- a/packages/core-testing/src/instrumentation/recording-realtime-broadcaster.ts
+++ b/packages/core-testing/src/instrumentation/recording-realtime-broadcaster.ts
@@ -6,7 +6,7 @@ import type { z } from "zod";
 type RealtimeChannelDescriptor<TName extends string, TSchema extends z.ZodType> = {
   readonly name: TName;
   readonly schema: TSchema;
-  readonly scope?: string;
+  readonly scope: string | { role: string } | { userScoped: true; template: string };
 };
 
 interface IRealtimeBroadcaster {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3e7e0bc..9ed3c22 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -330,6 +330,9 @@ importers:
       '@repo/core-events':
         specifier: workspace:*
         version: link:../core-events
+      '@repo/core-realtime':
+        specifier: workspace:*
+        version: link:../core-realtime
       '@repo/core-shared':
         specifier: workspace:*
         version: link:../core-shared
@@ -373,6 +376,9 @@ importers:
       '@repo/core-events':
         specifier: workspace:*
         version: link:../core-events
+      '@repo/core-realtime':
+        specifier: workspace:*
+        version: link:../core-realtime
       '@repo/core-shared':
         specifier: workspace:*
         version: link:../core-shared
@@ -809,6 +815,9 @@ importers:
       '@repo/core-events':
         specifier: workspace:*
         version: link:../core-events
+      '@repo/core-realtime':
+        specifier: workspace:*
+        version: link:../core-realtime
       '@repo/core-shared':
         specifier: workspace:*
         version: link:../core-shared
@@ -852,6 +861,9 @@ importers:
       '@repo/core-events':
         specifier: workspace:*
         version: link:../core-events
+      '@repo/core-realtime':
+        specifier: workspace:*
+        version: link:../core-realtime
       '@repo/core-shared':
         specifier: workspace:*
         version: link:../core-shared
@@ -892,6 +904,9 @@ importers:
       '@repo/core-events':
         specifier: workspace:*
         version: link:../core-events
+      '@repo/core-realtime':
+        specifier: workspace:*
+        version: link:../core-realtime
       '@repo/core-shared':
         specifier: workspace:*
         version: link:../core-shared