diff --git a/package.json b/package.json
index 99b16f6..9c06b7c 100644
--- a/package.json
+++ b/package.json
@@ -21,5 +21,8 @@
     "tslib": "^2.8.0",
     "typescript": "~5.6.2",
     "vite": "^5.4.10"
+  },
+  "dependencies": {
+    "pocketbase": "^0.21.5"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6228a32..8dc082a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7,6 +7,10 @@ settings:
 importers:
 
   .:
+    dependencies:
+      pocketbase:
+        specifier: ^0.21.5
+        version: 0.21.5
     devDependencies:
       '@sveltejs/vite-plugin-svelte':
         specifier: ^4.0.0
@@ -677,6 +681,9 @@ packages:
     resolution: {integrity: sha512-saLsH7WeYYPiD25LDuLRRY/i+6HaPYr6G1OUlN39otzkSTxKnubR9RTxS3/Kk50s1g2JTgFwWQDQyplC5/SHZg==}
     engines: {node: '>= 6'}
 
+  pocketbase@0.21.5:
+    resolution: {integrity: sha512-bnI/uinnQps+ElSlzxkc4yvwuSFfKcoszDtXH/4QT2FhGq2mJVUvDlxn+rjRXVntUjPfmMG5LEPZ1eGqV6ssog==}
+
   postcss-import@15.1.0:
     resolution: {integrity: sha512-hpr+J05B2FVYUAXHeK1YyI267J/dDDhMU6B6civm8hSY1jYJnBXxzKDKDswzJmtLHryrjhnDjqqp/49t8FALew==}
     engines: {node: '>=14.0.0'}
@@ -1400,6 +1407,8 @@ snapshots:
 
   pirates@4.0.6: {}
 
+  pocketbase@0.21.5: {}
+
   postcss-import@15.1.0(postcss@8.4.47):
     dependencies:
       postcss: 8.4.47
diff --git a/src/App.svelte b/src/App.svelte
index e69de29..47731ac 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -0,0 +1,39 @@
+<script lang="ts">
+  import Auth from "./lib/components/Auth/Auth.svelte";
+  import Chat from "./lib/components/Chat/Chat.svelte";
+  import Login from "./lib/components/Auth/Login.svelte";
+  import Register from "./lib/components/Auth/Register.svelte";
+  import { getUser, pb } from "./lib/pocketbase.svelte";
+
+  let page = $state("");
+
+  function cancel() {
+    page = "auth";
+  }
+
+  function logout() {
+    pb.authStore.clear();
+    page = "auth";
+  }
+
+  $effect(() => {
+    const user = getUser();
+    $inspect(user);
+
+    if (!user) {
+      page = "auth";
+    } else {
+      page = "app";
+    }
+  });
+</script>
+
+{#if page == "auth"}
+  <Auth showLogin={() => (page = "login")} showRegister={() => (page = "register")}></Auth>
+{:else if page == "login"}
+  <Login {cancel} />
+{:else if page == "register"}
+  <Register {cancel} />
+{:else if page == "app"}
+  <Chat />
+{/if}
diff --git a/src/lib/components/Auth/Auth.svelte b/src/lib/components/Auth/Auth.svelte
new file mode 100644
index 0000000..00e71ee
--- /dev/null
+++ b/src/lib/components/Auth/Auth.svelte
@@ -0,0 +1,13 @@
+<script lang="ts">
+  import Link from "../utils/Link.svelte";
+  import Center from "../utils/Center.svelte";
+  let { showLogin, showRegister }: { showLogin: () => void; showRegister: () => void; } = $props();
+</script>
+
+<Center>
+  <p class="select-none text-2xl">
+    Welcome on minichat !
+    <br>
+    Please <Link onclick={showLogin}>login</Link> or <Link onclick={showRegister} >register</Link>.
+  </p>
+</Center>
diff --git a/src/lib/components/Auth/Login.svelte b/src/lib/components/Auth/Login.svelte
new file mode 100644
index 0000000..ca2ae39
--- /dev/null
+++ b/src/lib/components/Auth/Login.svelte
@@ -0,0 +1,40 @@
+<script lang="ts">
+  import Center from "../utils/Center.svelte";
+  import Input from "../utils/Input.svelte";
+  import Button from "../utils/Button.svelte";
+  import { pb } from "../../pocketbase.svelte";
+    import { ClientResponseError } from "pocketbase";
+
+  let { cancel }: { cancel: () => void } = $props();
+
+  // svelte-ignore non_reactive_update
+  let username = "";
+  // svelte-ignore non_reactive_update
+  let password = "";
+
+  let authError = $state("")
+
+  async function login() {
+    if (password.length < 8) return;
+
+    try {
+      const authData = await pb.collection("users").authWithPassword(username, password);
+
+      console.log(authData);
+    } catch (error) {
+      if(error instanceof ClientResponseError) {
+        authError = error.response.message
+      }
+    }
+  }
+</script>
+
+<Center>
+  <form action="javascript:void(0);" class="select-none flex flex-col items-start gap-2">
+    <Input name="username" labelSize="larger" inputWidth="16rem" bind:value={username}>Username:</Input>
+    <Input name="password" type="password" labelSize="larger" inputWidth="16rem" bind:value={password}>Password:</Input>
+    <Button type="submit" width="16rem" onclick={login}>Login</Button>
+    <Button type="submit" width="16rem" onclick={cancel}>Cancel</Button>
+    <p class="text-center text-red-500 w-[100%]">{authError === "" ? "" : authError}</p>
+  </form>
+</Center>
diff --git a/src/lib/components/Auth/Register.svelte b/src/lib/components/Auth/Register.svelte
new file mode 100644
index 0000000..8cd1461
--- /dev/null
+++ b/src/lib/components/Auth/Register.svelte
@@ -0,0 +1,64 @@
+<script lang="ts">
+  import Center from "../utils/Center.svelte";
+  import Input from "../utils/Input.svelte";
+  import Button from "../utils/Button.svelte";
+  import { pb } from "../../pocketbase.svelte";
+    import { ClientResponseError } from "pocketbase";
+
+  // svelte-ignore non_reactive_update
+  let username = "";
+  // svelte-ignore non_reactive_update
+  let password = "";
+  // svelte-ignore non_reactive_update
+  let passwordConfirm = "";
+
+  let authError = $state("")
+
+  let { cancel }: { cancel: () => void } = $props();
+
+  async function register() {
+    if (password.length < 8 || password !== passwordConfirm) return;
+
+    const data = {
+      username,
+      password,
+      passwordConfirm,
+    };
+
+    try {
+      const record = await pb.collection("users").create(data);
+
+      const authData = await pb
+        .collection("users")
+        .authWithPassword(username, password);
+
+      console.log(record, authData)
+    } catch (error) {
+      if(error instanceof ClientResponseError) {
+        authError = error.response.message
+      }
+    }
+  }
+</script>
+
+<Center>
+  <form action="javascript:void(0);" class="select-none flex flex-col items-start gap-2">
+    <Input name="username" labelSize="larger" inputWidth="16rem" bind:value={username}
+      >Username:</Input>
+    <Input
+      name="password"
+      type="password"
+      labelSize="larger"
+      inputWidth="16rem"
+      bind:value={password}>Password:</Input>
+    <Input
+      name="password"
+      type="password"
+      labelSize="larger"
+      inputWidth="16rem"
+      bind:value={passwordConfirm}>Confirm password:</Input>
+    <Button type="submit" width="16rem" onclick={register}>Register</Button>
+    <Button type="submit" width="16rem" onclick={cancel}>Cancel</Button>
+    <p class="text-center text-red-500 w-[100%]">{authError === "" ? "" : authError}</p>
+  </form>
+</Center>
diff --git a/src/lib/components/Chat/Chat.svelte b/src/lib/components/Chat/Chat.svelte
new file mode 100644
index 0000000..6bbe301
--- /dev/null
+++ b/src/lib/components/Chat/Chat.svelte
@@ -0,0 +1,6 @@
+<script lang="ts">
+    import { getUser, pb } from "../../pocketbase.svelte";
+    import Button from "../utils/Button.svelte";
+</script>
+
+<Button onclick={() => pb.authStore.clear()}>Logout</Button>
\ No newline at end of file
diff --git a/src/lib/components/utils/Dialog.svelte b/src/lib/components/utils/Dialog.svelte
new file mode 100644
index 0000000..e04374c
--- /dev/null
+++ b/src/lib/components/utils/Dialog.svelte
@@ -0,0 +1,5 @@
+<script lang="ts">
+  let { open=false, children }: { open?: boolean, children: any } = $props();
+</script>
+
+<dialog {open}>{@render children?.()}</dialog>
diff --git a/src/lib/pocketbase.svelte.ts b/src/lib/pocketbase.svelte.ts
new file mode 100644
index 0000000..9bcd251
--- /dev/null
+++ b/src/lib/pocketbase.svelte.ts
@@ -0,0 +1,11 @@
+import PocketBase from "pocketbase";
+
+export const pb = new PocketBase("http://localhost:8090");
+
+let user = $state(pb.authStore.model);
+
+pb.authStore.onChange(() => {
+  user = pb.authStore.model;
+});
+
+export let getUser = () => user;