diff --git a/apps/app/biome.json b/apps/app/biome.json
new file mode 100644
index 0000000..8ac0481
--- /dev/null
+++ b/apps/app/biome.json
@@ -0,0 +1,33 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.2/schema.json",
+  "vcs": {
+    "enabled": false,
+    "clientKind": "git",
+    "useIgnoreFile": false
+  },
+  "files": {
+    "ignoreUnknown": false,
+    "ignore": ["*.gen.ts"]
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "tab"
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "correctness": {
+        "noChildrenProp": "off"
+      }
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "double"
+    }
+  }
+}
diff --git a/apps/app/src/components/Layout.tsx b/apps/app/src/components/Layout.tsx
new file mode 100644
index 0000000..96c3a91
--- /dev/null
+++ b/apps/app/src/components/Layout.tsx
@@ -0,0 +1,56 @@
+import { CircleUser } from 'lucide-react'
+
+import {
+  Button,
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from '@boring.tools/ui'
+import { SignOutButton, useUser } from '@clerk/clerk-react'
+import type { ReactNode } from 'react'
+import { Navigation } from './Navigation'
+import { NavigationMobile } from './NavigationMobile'
+
+export const description =
+  'A products dashboard with a sidebar navigation and a main content area. The dashboard has a header with a search input and a user menu. The sidebar has a logo, navigation links, and a card with a call to action. The main content area shows an empty state with a call to action.'
+
+export const Layout = ({ children }: { children: ReactNode | ReactNode[] }) => {
+  const { user } = useUser()
+  return (
+    <div className="grid min-h-screen w-full md:grid-cols-[220px_1fr] lg:grid-cols-[280px_1fr]">
+      <Navigation />
+      <div className="flex flex-col">
+        <header className="flex h-14 items-center gap-4 border-b bg-muted/40 px-4 lg:h-[60px] lg:px-6">
+          <NavigationMobile />
+          <div className="w-full flex-1"></div>
+          <DropdownMenu>
+            <DropdownMenuTrigger asChild>
+              <Button
+                variant="outline"
+                size="icon"
+                className="overflow-hidden rounded-full"
+              >
+                <img src={user?.imageUrl} alt={user?.fullName ?? 'Avatar'} />
+              </Button>
+            </DropdownMenuTrigger>
+            <DropdownMenuContent align="end">
+              <DropdownMenuLabel>My Account</DropdownMenuLabel>
+              <DropdownMenuSeparator />
+              <DropdownMenuItem>
+                <SignOutButton>
+                  <button type="button">Sign out</button>
+                </SignOutButton>
+              </DropdownMenuItem>
+            </DropdownMenuContent>
+          </DropdownMenu>
+        </header>
+        <main className="flex flex-1 flex-col gap-4 p-4 lg:gap-6 lg:p-6">
+          {children}
+        </main>
+      </div>
+    </div>
+  )
+}
diff --git a/apps/app/src/components/Navigation.tsx b/apps/app/src/components/Navigation.tsx
new file mode 100644
index 0000000..e2d4dbb
--- /dev/null
+++ b/apps/app/src/components/Navigation.tsx
@@ -0,0 +1,58 @@
+import {
+  Button,
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from '@boring.tools/ui'
+import { Link } from '@tanstack/react-router'
+import { BellIcon, HomeIcon } from 'lucide-react'
+
+export const Navigation = () => {
+  return (
+    <div className="hidden border-r bg-muted/40 md:block">
+      <div className="flex h-full max-h-screen flex-col gap-2">
+        <div className="flex h-14 items-center border-b px-4 lg:h-[60px] lg:px-6">
+          <Link to="/" className="flex items-center gap-2 font-semibold">
+            <span className="">boring.tools</span>
+          </Link>
+          <Button variant="outline" size="icon" className="ml-auto h-8 w-8">
+            <BellIcon className="h-4 w-4" />
+            <span className="sr-only">Toggle notifications</span>
+          </Button>
+        </div>
+        <div className="flex-1">
+          <nav className="grid items-start px-2 text-sm font-medium lg:px-4">
+            <Link
+              href="#"
+              className="flex items-center gap-3 rounded-lg px-3 py-2 transition-all hover:text-primary"
+              activeProps={{ className: 'bg-muted text-primary' }}
+            >
+              <HomeIcon className="h-4 w-4" />
+              Dashboard
+            </Link>
+          </nav>
+        </div>
+        <div className="mt-auto p-4">
+          <Card>
+            <CardHeader className="p-2 pt-0 md:p-4">
+              <CardTitle>More Infos</CardTitle>
+              <CardDescription>
+                If you want more informations about boring.tools, visit our
+                documenation!
+              </CardDescription>
+            </CardHeader>
+            <CardContent className="p-2 pt-0 md:p-4 md:pt-0">
+              <a href="https://boring.tools">
+                <Button size="sm" className="w-full">
+                  Documentation
+                </Button>
+              </a>
+            </CardContent>
+          </Card>
+        </div>
+      </div>
+    </div>
+  )
+}
diff --git a/apps/app/src/components/NavigationMobile.tsx b/apps/app/src/components/NavigationMobile.tsx
new file mode 100644
index 0000000..1a15b29
--- /dev/null
+++ b/apps/app/src/components/NavigationMobile.tsx
@@ -0,0 +1,64 @@
+import {
+  Button,
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+  Sheet,
+  SheetContent,
+  SheetTrigger,
+} from '@boring.tools/ui'
+import { Link } from '@tanstack/react-router'
+import { HomeIcon, MenuIcon } from 'lucide-react'
+
+export const NavigationMobile = () => {
+  return (
+    <Sheet>
+      <SheetTrigger asChild>
+        <Button variant="outline" size="icon" className="shrink-0 md:hidden">
+          <MenuIcon className="h-5 w-5" />
+          <span className="sr-only">Toggle navigation menu</span>
+        </Button>
+      </SheetTrigger>
+      <SheetContent side="left" className="flex flex-col">
+        <nav className="grid gap-2 text-lg font-medium">
+          <Link
+            to="/"
+            className="flex items-center gap-2 text-lg font-semibold"
+          >
+            <span className="sr-only">boring.tools</span>
+          </Link>
+          <Link
+            to="/"
+            className="mx-[-0.65rem] flex items-center gap-4 rounded-xl px-3 py-2 hover:text-foreground"
+            activeProps={{
+              className: 'bg-muted text-foreground',
+            }}
+          >
+            <HomeIcon className="h-5 w-5" />
+            Dashboard
+          </Link>
+        </nav>
+        <div className="mt-auto">
+          <Card>
+            <CardHeader className="p-2 pt-0 md:p-4">
+              <CardTitle>More Infos</CardTitle>
+              <CardDescription>
+                If you want more informations about boring.tools, visit our
+                documenation!
+              </CardDescription>
+            </CardHeader>
+            <CardContent className="p-2 pt-0 md:p-4 md:pt-0">
+              <a href="https://boring.tools">
+                <Button size="sm" className="w-full">
+                  Documentation
+                </Button>
+              </a>
+            </CardContent>
+          </Card>
+        </div>
+      </SheetContent>
+    </Sheet>
+  )
+}
diff --git a/apps/app/src/routes/__root.tsx b/apps/app/src/routes/__root.tsx
index f5e2bb2..a01555d 100644
--- a/apps/app/src/routes/__root.tsx
+++ b/apps/app/src/routes/__root.tsx
@@ -2,6 +2,7 @@ import { ThemeToggle } from '@boring.tools/ui'
 import { SignIn, SignedIn, SignedOut, UserButton } from '@clerk/clerk-react'
 import { Link, Outlet, createRootRoute } from '@tanstack/react-router'
 import { TanStackRouterDevtools } from '@tanstack/router-devtools'
+import { Layout } from '../components/Layout'
 
 export const Route = createRootRoute({
   component: () => (
@@ -12,21 +13,10 @@ export const Route = createRootRoute({
         </div>
       </SignedOut>
       <SignedIn>
-        <>
-          <div className="p-2 flex gap-2">
-            <Link to="/" className="[&.active]:font-bold">
-              Home
-            </Link>{' '}
-            <Link to="/about" className="[&.active]:font-bold">
-              About
-            </Link>
-            <ThemeToggle />
-            <UserButton />
-          </div>
-          <hr />
+        <Layout>
           <Outlet />
           {!import.meta.env.PROD && <TanStackRouterDevtools />}
-        </>
+        </Layout>
       </SignedIn>
     </>
   ),