diff --git a/src/config.rs b/src/config.rs
index 734974a..165b7ef 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -104,6 +104,9 @@ fn default_cache_size() -> usize {
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct UiConfig {
+    /// Nom affiché dans le dashboard
+    #[serde(default)]
+    pub username: String,
     #[serde(default = "default_true")]
     pub show_notifications: bool,
     #[serde(default = "default_true")]
@@ -115,6 +118,7 @@ pub struct UiConfig {
 impl Default for UiConfig {
     fn default() -> Self {
         Self {
+            username: String::new(),
             show_notifications: true,
             show_tray_icon: true,
             notification_timeout_sec: default_notification_timeout(),
diff --git a/src/frontend/changelog.html b/src/frontend/changelog.html
index 89924e9..d22f430 100644
--- a/src/frontend/changelog.html
+++ b/src/frontend/changelog.html
@@ -3,7 +3,7 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>Changelog — imagod-web v0.2.0+build.30-ce93740-dirty</title>
+<title>Changelog — imagod-web v0.2.0+build.31-05d13a7-dirty</title>
 <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🖼️</text></svg>">
 <style>
 * { margin:0; padding:0; box-sizing:border-box; }
@@ -37,7 +37,7 @@ footer { text-align:center; color:#484f58; font-size:0.8rem; padding:2rem; }
 </head>
 <body>
 <header>
-  <h1>📋 imagod-web <span class="version-badge">v0.2.0+build.30-ce93740-dirty</span></h1>
+  <h1>📋 imagod-web <span class="version-badge">v0.2.0+build.31-05d13a7-dirty</span></h1>
   <nav>
     <a href="/">🖼️ Galerie</a>
     <a href="/changelog" class="active">📋 Changelog</a>
@@ -107,6 +107,6 @@ footer { text-align:center; color:#484f58; font-size:0.8rem; padding:2rem; }
 <h2>Légende des tags</h2>
 
 </main>
-<footer>imagod-web v0.2.0+build.30-ce93740-dirty — <a href="https://git.dracodev.net/Projets/imagod-web">Gitea</a></footer>
+<footer>imagod-web v0.2.0+build.31-05d13a7-dirty — <a href="https://git.dracodev.net/Projets/imagod-web">Gitea</a></footer>
 </body>
 </html>
diff --git a/src/frontend/help.html b/src/frontend/help.html
index fb83d5c..93a96f3 100644
--- a/src/frontend/help.html
+++ b/src/frontend/help.html
@@ -3,7 +3,7 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>Aide & Roadmap — imagod-web v0.2.0+build.30-ce93740-dirty</title>
+<title>Aide & Roadmap — imagod-web v0.2.0+build.31-05d13a7-dirty</title>
 <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🖼️</text></svg>">
 <style>
 * { margin:0; padding:0; box-sizing:border-box; }
@@ -37,7 +37,7 @@ footer { text-align:center; color:#484f58; font-size:0.8rem; padding:2rem; }
 </head>
 <body>
 <header>
-  <h1>❓ imagod-web <span class="version-badge">v0.2.0+build.30-ce93740-dirty</span></h1>
+  <h1>❓ imagod-web <span class="version-badge">v0.2.0+build.31-05d13a7-dirty</span></h1>
   <nav>
     <a href="/">🖼️ Galerie</a>
     <a href="/changelog">📋 Changelog</a>
@@ -169,6 +169,6 @@ footer { text-align:center; color:#484f58; font-size:0.8rem; padding:2rem; }
 <p>5. <strong>Corriger le backend Imago</strong> (thumbnails, upload, stockage)</p>
 
 </main>
-<footer>imagod-web v0.2.0+build.30-ce93740-dirty — <a href="https://git.dracodev.net/Projets/imagod-web">Gitea</a></footer>
+<footer>imagod-web v0.2.0+build.31-05d13a7-dirty — <a href="https://git.dracodev.net/Projets/imagod-web">Gitea</a></footer>
 </body>
 </html>
diff --git a/src/frontend/index.html b/src/frontend/index.html
index 4d856d8..a01d1a4 100644
--- a/src/frontend/index.html
+++ b/src/frontend/index.html
@@ -465,7 +465,7 @@
         <button class="btn" id="clear-btn" style="display:none">✕</button>
     </div>
     <button class="btn accent" id="header-upload-btn" onclick="document.getElementById('drop-zone').scrollIntoView({behavior:'smooth'}); document.getElementById('file-input').click()">📤 Upload</button>
-    <span class="version-badge" id="version-badge">v0.2.0+build.30-ce93740-dirty</span>
+    <span class="version-badge" id="version-badge">v0.2.0+build.31-05d13a7-dirty</span>
 </div>
 
 <!-- ─── Navigation ─── -->
@@ -1245,16 +1245,34 @@ function initApp() {
 }
 
 // Check localStorage for existing session
-(function checkAuth() {
+(async function checkAuth() {
     const savedKey = localStorage.getItem('imago_api_key');
     const savedName = localStorage.getItem('imago_user_name');
+    
+    // Récupérer le username configuré côté serveur (priorité)
+    let serverName = null;
+    try {
+        const meResp = await fetch('/api/me');
+        if (meResp.ok) {
+            const meData = await meResp.json();
+            serverName = meData.name;
+        }
+    } catch(e) { /* ignore */ }
+    
+    const displayName = serverName !== 'Utilisateur' ? serverName : (savedName || 'Utilisateur');
+    
     if (savedKey) {
         apiKey = savedKey;
-        userName = savedName || 'Utilisateur';
+        userName = displayName;
         document.getElementById('login-overlay').style.display = 'none';
         document.getElementById('user-info').style.display = 'flex';
         document.getElementById('user-name').textContent = userName;
         initApp();
+    } else {
+        // Même sans clé API, afficher le nom serveur si configuré
+        if (serverName && serverName !== 'Utilisateur') {
+            userName = serverName;
+        }
     }
 })();
 
diff --git a/src/imago_client.rs b/src/imago_client.rs
index 0899ba9..e3cc65e 100644
--- a/src/imago_client.rs
+++ b/src/imago_client.rs
@@ -143,10 +143,14 @@ pub struct ImagoClient {
 impl ImagoClient {
     /// Crée un nouveau client Imago
     pub fn new(base_url: String, api_key: String) -> Result<Self> {
+        let url = base_url.trim().to_string();
+        if url.is_empty() {
+            anyhow::bail!("URL Imago non configurée — utilisez 'imagod-web config set imago.url \"http://...\"'");
+        }
         let client = Client::builder()
             .timeout(std::time::Duration::from_secs(30))
             .build()?;
-        Ok(Self { client, base_url, api_key })
+        Ok(Self { client, base_url: url, api_key })
     }
 
     /// Construit l'URL de base pour l'API images
diff --git a/src/server/mod.rs b/src/server/mod.rs
index f898f3f..e34d924 100644
--- a/src/server/mod.rs
+++ b/src/server/mod.rs
@@ -51,6 +51,7 @@ pub async fn serve_with_config(host: &str, port: u16, config: &Config) -> anyhow
         imago,
         base_url: config.imago.url.clone(),
         api_key: config.imago.api_key.clone(),
+        username: config.ui.username.clone(),
         ws_hub: ws_hub.clone(),
         dedup_db_path,
         in_flight: Mutex::new(HashSet::new()),
diff --git a/src/server/routes.rs b/src/server/routes.rs
index bc80e02..70245ef 100644
--- a/src/server/routes.rs
+++ b/src/server/routes.rs
@@ -19,6 +19,7 @@ pub struct AppState {
     pub imago: Arc<ImagoClient>,
     pub base_url: String,
     pub api_key: String,
+    pub username: String,
     pub ws_hub: crate::server::ws::WsHub,
     /// Chemin vers la DB de dédoublonnage (partagée avec le watcher)
     pub dedup_db_path: PathBuf,
@@ -102,6 +103,7 @@ pub fn api_routes(state: AppState) -> Router {
         .route("/api/health", get(health_check))
         .route("/api/ping", get(ping))
         .route("/api/auth/validate", post(validate_api_key))
+        .route("/api/me", get(get_me))
         .route("/api/upload", post(upload_image))
         .route("/api/images", get(list_images))
         .route("/api/images/search", get(search_images))
@@ -125,6 +127,17 @@ async fn ping() -> Json<serde_json::Value> {
     Json(serde_json::json!({"pong": true, "timestamp": chrono::Utc::now().to_rfc3339()}))
 }
 
+/// Retourne les infos de l'utilisateur configuré (username, etc.)
+async fn get_me(
+    State(state): State<Arc<AppState>>,
+) -> Json<serde_json::Value> {
+    let name = if state.username.is_empty() { "Utilisateur" } else { &state.username };
+    Json(serde_json::json!({
+        "name": name,
+        "username": state.username,
+    }))
+}
+
 /// Retourne la version de l'application et des infos utiles
 async fn version() -> Json<serde_json::Value> {
     Json(serde_json::json!({