diff --git a/backend/src/lib/errors.ts b/backend/src/lib/errors.ts
deleted file mode 100644
index dd79e9e..0000000
--- a/backend/src/lib/errors.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-/**
- * Re-export from @bytelyst/errors — shared across all services.
- */
-export {
-  ServiceError,
-  BadRequestError,
-  UnauthorizedError,
-  ForbiddenError,
-  NotFoundError,
-  ConflictError,
-  TooManyRequestsError,
-} from '@bytelyst/errors';
diff --git a/backend/src/lib/request-context.ts b/backend/src/lib/request-context.ts
index 731877f..24ccf19 100644
--- a/backend/src/lib/request-context.ts
+++ b/backend/src/lib/request-context.ts
@@ -3,7 +3,7 @@
  */
 
 import type { FastifyRequest } from 'fastify';
-import { BadRequestError } from './errors.js';
+import { BadRequestError } from '@bytelyst/errors';
 
 export interface JwtPayload {
   sub: string;
diff --git a/backend/src/modules/households/routes.ts b/backend/src/modules/households/routes.ts
index 5eb4931..cb95c82 100644
--- a/backend/src/modules/households/routes.ts
+++ b/backend/src/modules/households/routes.ts
@@ -14,7 +14,7 @@
 
 import crypto from 'node:crypto';
 import type { FastifyInstance } from 'fastify';
-import { BadRequestError, NotFoundError, ForbiddenError, ConflictError } from '../../lib/errors.js';
+import { BadRequestError, NotFoundError, ForbiddenError, ConflictError } from '@bytelyst/errors';
 import { extractAuth } from '../../lib/auth.js';
 import * as repo from './repository.js';
 import {
diff --git a/backend/src/modules/routines/routes.ts b/backend/src/modules/routines/routes.ts
index e5f5c6d..7290b71 100644
--- a/backend/src/modules/routines/routes.ts
+++ b/backend/src/modules/routines/routes.ts
@@ -11,7 +11,7 @@
  */
 
 import type { FastifyInstance } from 'fastify';
-import { BadRequestError, NotFoundError, ConflictError } from '../../lib/errors.js';
+import { BadRequestError, NotFoundError, ConflictError } from '@bytelyst/errors';
 import { extractAuth } from '../../lib/auth.js';
 import * as repo from './repository.js';
 import {
diff --git a/backend/src/modules/shared-timers/routes.ts b/backend/src/modules/shared-timers/routes.ts
index 32f46e3..b75c056 100644
--- a/backend/src/modules/shared-timers/routes.ts
+++ b/backend/src/modules/shared-timers/routes.ts
@@ -13,7 +13,7 @@
 
 import crypto from 'node:crypto';
 import type { FastifyInstance } from 'fastify';
-import { BadRequestError, NotFoundError, ForbiddenError } from '../../lib/errors.js';
+import { BadRequestError, NotFoundError, ForbiddenError } from '@bytelyst/errors';
 import { extractAuth } from '../../lib/auth.js';
 import { getHousehold } from '../households/repository.js';
 import * as repo from './repository.js';
diff --git a/backend/src/modules/timers/routes.ts b/backend/src/modules/timers/routes.ts
index 160bacd..e13a249 100644
--- a/backend/src/modules/timers/routes.ts
+++ b/backend/src/modules/timers/routes.ts
@@ -11,7 +11,7 @@
  */
 
 import type { FastifyInstance } from 'fastify';
-import { BadRequestError, NotFoundError, ConflictError } from '../../lib/errors.js';
+import { BadRequestError, NotFoundError, ConflictError } from '@bytelyst/errors';
 import { extractAuth } from '../../lib/auth.js';
 import * as repo from './repository.js';
 import {
diff --git a/backend/src/modules/webhooks/repository.ts b/backend/src/modules/webhooks/repository.ts
index fab0bc3..f6a9337 100644
--- a/backend/src/modules/webhooks/repository.ts
+++ b/backend/src/modules/webhooks/repository.ts
@@ -1,5 +1,5 @@
 import { getCollection } from '../../lib/datastore.js';
-import { NotFoundError, ConflictError } from '../../lib/errors.js';
+import { NotFoundError, ConflictError } from '@bytelyst/errors';
 import type {
   WebhookSubscriptionDoc,
   WebhookEventDoc,
diff --git a/backend/src/modules/webhooks/routes.ts b/backend/src/modules/webhooks/routes.ts
index aedfd9c..57677b3 100644
--- a/backend/src/modules/webhooks/routes.ts
+++ b/backend/src/modules/webhooks/routes.ts
@@ -8,7 +8,7 @@ import {
 import * as repo from './repository.js';
 import { dispatchEvent } from './dispatcher.js';
 import { extractAuth } from '../../lib/auth.js';
-import { BadRequestError } from '../../lib/errors.js';
+import { BadRequestError } from '@bytelyst/errors';
 
 const PRODUCT_ID = 'chronomind';