diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..1c11102
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,4 @@
+PORT=4000
+NODE_ENV=production
+PORTAINER_URL=https://your-portainer.example.com
+PORTAINER_API_KEY=your_api_key_here
diff --git a/frontend/src/Stacks.jsx b/frontend/src/Stacks.jsx
index 9560ebd..8b7bf27 100644
--- a/frontend/src/Stacks.jsx
+++ b/frontend/src/Stacks.jsx
@@ -6,37 +6,59 @@ export default function Stacks() {
   const [stacks, setStacks] = useState([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState("");
+  // Map: { [stackId]: boolean }
   const [redeploying, setRedeploying] = useState({});
 
-  // WebSocket initialisieren
+  // -------------------------
+  // WebSocket: connect + events
+  // -------------------------
   useEffect(() => {
-    const socket = io("/");
-    console.log("Socket connected");
+    // wenn Frontend und Backend auf verschiedenen Hosts/Ports laufen:
+    // const socket = io("http://localhost:4001");
+    const socket = io(); // gleiche Origin (Express static) -> passt normalerweise
+    socket.on("connect", () => console.log("Socket connected:", socket.id));
 
     socket.on("redeployStatus", async ({ stackId, status }) => {
+      // sofort den lokalen map-state setzen (optimistisch)
       setRedeploying(prev => ({ ...prev, [stackId]: status }));
 
-      // Wenn Redeploy beendet, Stack-Status neu laden
+      // Wenn der Redeploy zu false geht, holen wir die aktuellen Stacks (aktualisieren UI)
       if (!status) {
         try {
           const res = await axios.get("/api/stacks");
           const sortedStacks = res.data.sort((a, b) => a.Name.localeCompare(b.Name));
           setStacks(sortedStacks);
+
+          // Map aus API-Daten aufbauen (wichtig für F5 / Konsistenz)
+          const map = {};
+          sortedStacks.forEach(s => { map[s.Id] = !!s.redeploying; });
+          setRedeploying(map);
         } catch (err) {
           console.error("Fehler beim Aktualisieren des Status nach Redeploy:", err);
         }
       }
     });
 
-    return () => socket.disconnect();
+    return () => {
+      socket.off("redeployStatus");
+      socket.disconnect();
+    };
   }, []);
 
-  // Stacks initial laden
+  // -------------------------
+  // Initiale Stacks laden (auch setzt redeploying map)
+  // -------------------------
   const fetchStacks = async () => {
+    setLoading(true);
     try {
       const res = await axios.get("/api/stacks");
       const sortedStacks = res.data.sort((a, b) => a.Name.localeCompare(b.Name));
       setStacks(sortedStacks);
+
+      // Wichtig: redeploying-Map aus API-Daten setzen, damit F5 den echten Zustand zeigt
+      const map = {};
+      sortedStacks.forEach(s => { map[s.Id] = !!s.redeploying; });
+      setRedeploying(map);
     } catch (err) {
       console.error("❌ Fehler beim Abrufen der Stacks:", err);
       setError("Fehler beim Laden der Stacks");
@@ -49,60 +71,71 @@ export default function Stacks() {
     fetchStacks();
   }, []);
 
-  // Redeploy eines Stacks
+  // -------------------------
+  // Redeploy Trigger
+  // -------------------------
   const handleRedeploy = async (stackId) => {
+    // sofort UI-Feedback
     setRedeploying(prev => ({ ...prev, [stackId]: true }));
 
     try {
       await axios.put(`/api/stacks/${stackId}/redeploy`);
+      // kein sofortiges setRedeploying(false) – Backend sendet das finale Event
     } catch (err) {
       console.error("❌ Fehler beim Redeploy:", err);
+      // Fehlerfall: wieder auf false setzen damit UI nicht hängen bleibt
       setRedeploying(prev => ({ ...prev, [stackId]: false }));
     }
   };
 
+  // -------------------------
+  // Render
+  // -------------------------
   if (loading) return <p className="text-gray-400">Lade Stacks...</p>;
   if (error) return <p className="text-red-400">{error}</p>;
 
   return (
     <div className="grid grid-cols-1 md:grid-cols-2 gap-6 p-6">
       {stacks.map(stack => {
-        const isRedeploying = redeploying[stack.Id] || false;
-        const isUpToDate = stack.updateStatus === "✅";
+        const isRedeploying = Boolean(redeploying[stack.Id]);
 
         return (
           <div
             key={stack.Id}
+            // wenn redeploying -> "gedämpfter" Container (sichtbar deaktiviert)
             className={`flex justify-between items-center p-5 rounded-xl shadow-lg transition
-              ${isRedeploying ? "bg-gray-700 cursor-not-allowed" : "bg-gray-800 hover:bg-gray-700"}`}
+              ${isRedeploying ? "bg-gray-700 opacity-60" : "bg-gray-800 hover:bg-gray-700"}`}
+            aria-disabled={isRedeploying}
           >
             <div className="flex items-center space-x-4">
-              {/* Status Indicator */}
               <div className={`w-12 h-12 flex items-center justify-center rounded-full
                 ${stack.updateStatus === "✅" ? "bg-green-500" :
                   stack.updateStatus === "⚠️" ? "bg-yellow-500" :
                   "bg-red-500"}`}
-              >
-              </div>
+              />
               <div>
                 <p className="text-lg font-semibold text-white">{stack.Name}</p>
                 <p className="text-sm text-gray-400">ID: {stack.Id}</p>
               </div>
             </div>
 
-            {!isUpToDate && (
-              <button
-                onClick={() => handleRedeploy(stack.Id)}
-                disabled={isRedeploying}
-                className={`px-5 py-2 rounded-lg font-medium transition
-                  ${isRedeploying ? "bg-orange-500 cursor-not-allowed" : "bg-blue-500 hover:bg-blue-600"}`}
-              >
-                {isRedeploying ? "Redeploying" : "Redeploy"}
-              </button>
-            )}
+            {/* Button ist jetzt immer sichtbar */}
+            <button
+              onClick={() => handleRedeploy(stack.Id)}
+              disabled={isRedeploying}
+              className={`px-5 py-2 rounded-lg font-medium transition
+                ${isRedeploying
+                  ? "bg-orange-500 cursor-not-allowed"
+                  : "bg-blue-500 hover:bg-blue-600"}`}
+              // Browser-Default Disabled-Opacity überschreiben
+              style={isRedeploying ? { opacity: 1 } : {}}
+            >
+              {isRedeploying ? "Redeploying…" : "Redeploy"}
+            </button>
           </div>
         );
       })}
+
       {stacks.length === 0 && <p className="text-gray-400">Keine Stacks gefunden.</p>}
     </div>
   );
diff --git a/frontend/vite.config.js b/frontend/vite.config.js
index 131eeb1..aa3ae76 100644
--- a/frontend/vite.config.js
+++ b/frontend/vite.config.js
@@ -15,4 +15,3 @@ export default defineConfig({
     allowedHosts: "all",
   },
 });
-