diff --git a/web/src/app.html b/web/src/app.html
index f2180a6..90066d0 100644
--- a/web/src/app.html
+++ b/web/src/app.html
@@ -7,8 +7,16 @@
     <meta name="theme-color" content="#0f172a" />
     <meta name="apple-mobile-web-app-capable" content="yes" />
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+    <link rel="manifest" href="/manifest.webmanifest" />
     %sveltekit.head%
     <script src="/registerSW.js"></script>
+    <script>
+      window.__installPrompt = null;
+      window.addEventListener('beforeinstallprompt', function(e) {
+        e.preventDefault();
+        window.__installPrompt = e;
+      });
+    </script>
   </head>
   <body data-sveltekit-preload-data="hover" class="bg-slate-900 text-slate-100">
     <div style="display: contents">%sveltekit.body%</div>
diff --git a/web/src/routes/+page.svelte b/web/src/routes/+page.svelte
index bc1d65f..2c07cef 100644
--- a/web/src/routes/+page.svelte
+++ b/web/src/routes/+page.svelte
@@ -123,6 +123,11 @@
       if (evt.type === "containers.updated") load();
       if (evt.type === "agent.connected" || evt.type === "agent.disconnected") load();
     });
+    // Récupère le prompt capturé tôt dans app.html avant que onMount soit prêt
+    if ((window as any).__installPrompt) {
+      installPrompt = (window as any).__installPrompt;
+      (window as any).__installPrompt = null;
+    }
     window.addEventListener("beforeinstallprompt", onBeforeInstallPrompt);
     window.addEventListener("appinstalled", onAppInstalled);
   });
