diff --git a/.github/workflows/generate-client.yml b/.github/workflows/generate-client.yml
index 1cf417ab89..b1787b0489 100644
--- a/.github/workflows/generate-client.yml
+++ b/.github/workflows/generate-client.yml
@@ -39,6 +39,10 @@ jobs:
     - run: uv run bash scripts/generate-client.sh
       env:
         VIRTUAL_ENV: backend/.venv
+        ENVIRONMENT: production
+        SECRET_KEY: just-for-generating-client
+        POSTGRES_PASSWORD: just-for-generating-client
+        FIRST_SUPERUSER_PASSWORD: just-for-generating-client
     - name: Add changes to git
       run: |
         git config --local user.email "github-actions@github.com"
diff --git a/.github/workflows/playwright.yml b/.github/workflows/playwright.yml
index 8c741221f7..b78f32c623 100644
--- a/.github/workflows/playwright.yml
+++ b/.github/workflows/playwright.yml
@@ -59,6 +59,18 @@ jobs:
       if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled == 'true' }}
       with:
         limit-access-to-actor: true
+    - name: Install uv
+      uses: astral-sh/setup-uv@v3
+      with:
+        version: "0.4.15"
+        enable-cache: true
+    - run: uv sync
+      working-directory: backend
+    - run: npm ci
+      working-directory: frontend
+    - run: uv run bash scripts/generate-client.sh
+      env:
+        VIRTUAL_ENV: backend/.venv
     - run: docker compose build
     - run: docker compose down -v --remove-orphans
     - name: Run Playwright tests
diff --git a/backend/app/api/main.py b/backend/app/api/main.py
index 09e0663fc3..45e930c4a1 100644
--- a/backend/app/api/main.py
+++ b/backend/app/api/main.py
@@ -1,9 +1,14 @@
 from fastapi import APIRouter
 
-from app.api.routes import items, login, users, utils
+from app.api.routes import items, login, private, users, utils
+from app.core.config import settings
 
 api_router = APIRouter()
 api_router.include_router(login.router, tags=["login"])
 api_router.include_router(users.router, prefix="/users", tags=["users"])
 api_router.include_router(utils.router, prefix="/utils", tags=["utils"])
 api_router.include_router(items.router, prefix="/items", tags=["items"])
+
+
+if settings.ENVIRONMENT == "local":
+    api_router.include_router(private.router)
diff --git a/backend/app/api/routes/private.py b/backend/app/api/routes/private.py
new file mode 100644
index 0000000000..9f33ef1900
--- /dev/null
+++ b/backend/app/api/routes/private.py
@@ -0,0 +1,38 @@
+from typing import Any
+
+from fastapi import APIRouter
+from pydantic import BaseModel
+
+from app.api.deps import SessionDep
+from app.core.security import get_password_hash
+from app.models import (
+    User,
+    UserPublic,
+)
+
+router = APIRouter(tags=["private"], prefix="/private")
+
+
+class PrivateUserCreate(BaseModel):
+    email: str
+    password: str
+    full_name: str
+    is_verified: bool = False
+
+
+@router.post("/users/", response_model=UserPublic)
+def create_user(user_in: PrivateUserCreate, session: SessionDep) -> Any:
+    """
+    Create a new user.
+    """
+
+    user = User(
+        email=user_in.email,
+        full_name=user_in.full_name,
+        hashed_password=get_password_hash(user_in.password),
+    )
+
+    session.add(user)
+    session.commit()
+
+    return user
diff --git a/backend/app/tests/api/routes/test_private.py b/backend/app/tests/api/routes/test_private.py
new file mode 100644
index 0000000000..1e1f985021
--- /dev/null
+++ b/backend/app/tests/api/routes/test_private.py
@@ -0,0 +1,26 @@
+from fastapi.testclient import TestClient
+from sqlmodel import Session, select
+
+from app.core.config import settings
+from app.models import User
+
+
+def test_create_user(client: TestClient, db: Session) -> None:
+    r = client.post(
+        f"{settings.API_V1_STR}/private/users/",
+        json={
+            "email": "pollo@listo.com",
+            "password": "password123",
+            "full_name": "Pollo Listo",
+        },
+    )
+
+    assert r.status_code == 200
+
+    data = r.json()
+
+    user = db.exec(select(User).where(User.id == data["id"])).first()
+
+    assert user
+    assert user.email == "pollo@listo.com"
+    assert user.full_name == "Pollo Listo"
diff --git a/frontend/package.json b/frontend/package.json
index 84f9841485..546028c9a9 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "tsc && vite build",
+    "build": "tsc -p tsconfig.build.json && vite build",
     "lint": "biome check --apply-unsafe --no-errors-on-unmatched --files-ignore-unknown=true ./",
     "preview": "vite preview",
     "generate-client": "openapi-ts"
diff --git a/frontend/tests/user-settings.spec.ts b/frontend/tests/user-settings.spec.ts
index a3a8a27490..8175d155c4 100644
--- a/frontend/tests/user-settings.spec.ts
+++ b/frontend/tests/user-settings.spec.ts
@@ -1,7 +1,8 @@
 import { expect, test } from "@playwright/test"
 import { firstSuperuser, firstSuperuserPassword } from "./config.ts"
 import { randomEmail, randomPassword } from "./utils/random"
-import { logInUser, logOutUser, signUpNewUser } from "./utils/user"
+import { logInUser, logOutUser } from "./utils/user"
+import { createUser } from "./utils/privateApi.ts"
 
 const tabs = ["My profile", "Password", "Appearance"]
 
@@ -26,13 +27,11 @@ test.describe("Edit user full name and email successfully", () => {
   test.use({ storageState: { cookies: [], origins: [] } })
 
   test("Edit user name with a valid name", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const updatedName = "Test User 2"
     const password = randomPassword()
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -50,13 +49,11 @@ test.describe("Edit user full name and email successfully", () => {
   })
 
   test("Edit user email with a valid email", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const updatedEmail = randomEmail()
     const password = randomPassword()
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -77,13 +74,11 @@ test.describe("Edit user with invalid data", () => {
   test.use({ storageState: { cookies: [], origins: [] } })
 
   test("Edit user email with an invalid email", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
     const invalidEmail = ""
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -97,13 +92,11 @@ test.describe("Edit user with invalid data", () => {
   })
 
   test("Cancel edit action restores original name", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
     const updatedName = "Test User"
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    const user = await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -114,18 +107,18 @@ test.describe("Edit user with invalid data", () => {
     await page.getByLabel("Full name").fill(updatedName)
     await page.getByRole("button", { name: "Cancel" }).first().click()
     await expect(
-      page.getByLabel("My profile").getByText(fullName, { exact: true }),
+      page
+        .getByLabel("My profile")
+        .getByText(user.full_name as string, { exact: true }),
     ).toBeVisible()
   })
 
   test("Cancel edit action restores original email", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
     const updatedEmail = randomEmail()
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -147,13 +140,11 @@ test.describe("Change password successfully", () => {
   test.use({ storageState: { cookies: [], origins: [] } })
 
   test("Update password successfully", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
     const NewPassword = randomPassword()
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -177,13 +168,11 @@ test.describe("Change password with invalid data", () => {
   test.use({ storageState: { cookies: [], origins: [] } })
 
   test("Update password with weak passwords", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
     const weakPassword = "weak"
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -201,14 +190,12 @@ test.describe("Change password with invalid data", () => {
   test("New password and confirmation password do not match", async ({
     page,
   }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
     const newPassword = randomPassword()
     const confirmPassword = randomPassword()
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
@@ -223,12 +210,10 @@ test.describe("Change password with invalid data", () => {
   })
 
   test("Current password and new password are the same", async ({ page }) => {
-    const fullName = "Test User"
     const email = randomEmail()
     const password = randomPassword()
 
-    // Sign up a new user
-    await signUpNewUser(page, fullName, email, password)
+    await createUser({ email, password })
 
     // Log in the user
     await logInUser(page, email, password)
diff --git a/frontend/tests/utils/privateApi.ts b/frontend/tests/utils/privateApi.ts
new file mode 100644
index 0000000000..b6fa0afe67
--- /dev/null
+++ b/frontend/tests/utils/privateApi.ts
@@ -0,0 +1,22 @@
+// Note: the `PrivateService` is only available when generating the client
+// for local environments
+import { OpenAPI, PrivateService } from "../../src/client"
+
+OpenAPI.BASE = `${process.env.VITE_API_URL}`
+
+export const createUser = async ({
+  email,
+  password,
+}: {
+  email: string
+  password: string
+}) => {
+  return await PrivateService.createUser({
+    requestBody: {
+      email,
+      password,
+      is_verified: true,
+      full_name: "Test User",
+    },
+  })
+}
diff --git a/frontend/tsconfig.build.json b/frontend/tsconfig.build.json
new file mode 100644
index 0000000000..13bd2efc21
--- /dev/null
+++ b/frontend/tsconfig.build.json
@@ -0,0 +1,4 @@
+{
+  "extends": "./tsconfig.json",
+  "exclude": ["tests/**/*.ts"]
+}