diff --git a/app.js b/app.js
index 7e428d6..aaecf90 100644
--- a/app.js
+++ b/app.js
@@ -14,6 +14,7 @@ const QRCode = require("qrcode");
 
 const app = express();
 const port = process.env.PORT;
+const DATA_DIR = path.resolve('./data/layouts');
 
 const TeleBot = require("telebot");
 const bot = new TeleBot(process.env.TELEBOT);
@@ -91,6 +92,43 @@ const pool = new Pool({
   connectionString: process.env.DATABASE_URL,
 });
 
+// Api für Hallenplaner
+app.get('/api/layouts', async (req, res) => {
+  try {
+    const files = await fs.readdir(DATA_DIR);
+    const names = files
+      .filter(f => f.endsWith('.json'))
+      .map(f => f.replace('.json', ''));
+
+    res.json(names);
+  } catch (err) {
+    res.status(500).json({ error: 'Layouts konnten nicht geladen werden' });
+  }
+});
+
+// GET Einzelnes
+app.get('/api/layouts/:name', async (req, res) => {
+  try {
+    const file = path.join(DATA_DIR, `${req.params.name}.json`);
+    const data = await fs.readFile(file, 'utf8');
+    res.json(JSON.parse(data));
+  } catch {
+    res.status(404).json({ error: 'Layout nicht gefunden' });
+  }
+});
+
+// ✅ Layout speichern / überschreiben
+app.post('/api/layouts/:name', async (req, res) => {
+  try {
+    const safeName = req.params.name.replace(/[^a-zA-Z0-9-_]/g, '');
+const file = path.join(DATA_DIR, `${safeName}.json`);
+    await fs.writeFile(file, JSON.stringify(req.body, null, 2));
+    res.json({ status: 'ok' });
+  } catch (err) {
+    res.status(500).json({ error: 'Speichern fehlgeschlagen' });
+  }
+});
+
 // Registrierung
 app.post("/register", async (req, res) => {
   const { username, email, password } = req.body;
diff --git a/data/layouts/heute.json b/data/layouts/heute.json
new file mode 100644
index 0000000..ca6f2d7
--- /dev/null
+++ b/data/layouts/heute.json
@@ -0,0 +1,264 @@
+{
+  "hall": {
+    "length": 27,
+    "width": 12,
+    "offset": 3
+  },
+  "groups": [
+    {
+      "id": "ecdc1024-bf04-443e-aff2-d5a2c159dab6",
+      "label": "Anlauf",
+      "x": 5.173443080357143,
+      "y": -1.9154631696428575,
+      "rotation": 0
+    },
+    {
+      "id": "1d97bae8-6103-4461-ba48-b04742281e32",
+      "label": "Bank",
+      "x": -6.848186383928571,
+      "y": -5.437516741071429,
+      "rotation": 0
+    },
+    {
+      "id": "2e469c2f-6077-461d-9fd7-f1b17cf07ac2",
+      "label": "Stufenbarren",
+      "x": -4.053465401785714,
+      "y": 10.329157366071428,
+      "rotation": 0
+    },
+    {
+      "id": "37c0656a-7ab1-4449-86ad-9f93f641e573",
+      "label": "Bank",
+      "x": -1.4038895089285717,
+      "y": 10.525027901785714,
+      "rotation": 0
+    },
+    {
+      "id": "5211d862-afb3-46e3-8dff-1a1b363bc797",
+      "label": "Trampolin",
+      "x": 0,
+      "y": 0,
+      "rotation": 0
+    },
+    {
+      "id": "b90e6a88-eb72-4b09-80e5-f66f9049181b",
+      "label": "Sprung",
+      "x": 5.091729910714286,
+      "y": -8.800463169642857,
+      "rotation": 180
+    },
+    {
+      "id": "f48b904f-2fad-4320-b025-de56be33c179",
+      "label": "Reck",
+      "x": 3.648616071428571,
+      "y": 10.193404017857143,
+      "rotation": 0
+    },
+    {
+      "id": "8ad1f068-6d2e-40c4-9d41-5b140ba2cf7b",
+      "label": "Bank",
+      "x": 6.403208705357144,
+      "y": -8.287583705357143,
+      "rotation": 0
+    },
+    {
+      "id": "3fdef0fa-66c6-4892-a346-e4711634b3f5",
+      "label": "Bank",
+      "x": 6.371417410714286,
+      "y": 9.891010044642858,
+      "rotation": 15
+    },
+    {
+      "id": "9bbf6ca5-6eaa-4f66-ab72-575230a5d97d",
+      "label": "Boden",
+      "x": -5.0391462053571425,
+      "y": -4.858041294642857,
+      "rotation": 0
+    },
+    {
+      "id": "3aa59445-fb52-47ce-86ca-21b1805dacbd",
+      "label": "Ringe-1",
+      "x": -5,
+      "y": -5,
+      "rotation": 0
+    }
+  ],
+  "devices": [
+    {
+      "id": "480937c6-a2ba-41c4-ab88-80fc2e8dc6fd",
+      "defId": "anlauf",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "ecdc1024-bf04-443e-aff2-d5a2c159dab6"
+    },
+    {
+      "id": "8ec4f2da-0f23-49ff-8554-4224aec90150",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "1d97bae8-6103-4461-ba48-b04742281e32"
+    },
+    {
+      "id": "05c6b73a-b54f-4cd7-8e1e-3b0e09b69570",
+      "defId": "matte",
+      "x": 1,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "2e469c2f-6077-461d-9fd7-f1b17cf07ac2"
+    },
+    {
+      "id": "81876d0f-cc5f-4a9e-bc02-3ddd5a6212db",
+      "defId": "matte",
+      "x": -1,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "2e469c2f-6077-461d-9fd7-f1b17cf07ac2"
+    },
+    {
+      "id": "0296077c-b15a-4bac-ad4f-c591f2a08c42",
+      "defId": "barren",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "2e469c2f-6077-461d-9fd7-f1b17cf07ac2"
+    },
+    {
+      "id": "3e6d6da0-647e-4981-a2f3-9c9de69bec6e",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "37c0656a-7ab1-4449-86ad-9f93f641e573"
+    },
+    {
+      "id": "d704dde4-fff8-4009-904d-4f1bb31eb94f",
+      "defId": "trampolin",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "5211d862-afb3-46e3-8dff-1a1b363bc797"
+    },
+    {
+      "id": "0a54a6e7-84a9-4cbb-b620-43535c521e16",
+      "defId": "weichboden",
+      "x": 2.5,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "5211d862-afb3-46e3-8dff-1a1b363bc797"
+    },
+    {
+      "id": "165b6e99-f8d0-4e1f-94d8-6f052ad06cd6",
+      "defId": "weichboden",
+      "x": -2.5,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "5211d862-afb3-46e3-8dff-1a1b363bc797"
+    },
+    {
+      "id": "4e14a63e-4959-40cc-ba9b-eba33d049bc7",
+      "defId": "grKasten",
+      "x": 3,
+      "y": 0,
+      "rotation": 90,
+      "groupId": "5211d862-afb3-46e3-8dff-1a1b363bc797"
+    },
+    {
+      "id": "742113fa-ebac-4ee7-9e00-93a53e011045",
+      "defId": "grKasten",
+      "x": -3,
+      "y": 0,
+      "rotation": 90,
+      "groupId": "5211d862-afb3-46e3-8dff-1a1b363bc797"
+    },
+    {
+      "id": "2955d6ad-c24c-4a30-b0da-0c2a268bda53",
+      "defId": "matte",
+      "x": 0,
+      "y": 3,
+      "rotation": 0,
+      "groupId": "b90e6a88-eb72-4b09-80e5-f66f9049181b"
+    },
+    {
+      "id": "aa312c1b-a941-4185-be4b-28d6bcd4d5a2",
+      "defId": "matte",
+      "x": 0,
+      "y": 1,
+      "rotation": 0,
+      "groupId": "b90e6a88-eb72-4b09-80e5-f66f9049181b"
+    },
+    {
+      "id": "5a9af8f6-c16e-4873-9cf9-75f46d381c04",
+      "defId": "bock",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "b90e6a88-eb72-4b09-80e5-f66f9049181b"
+    },
+    {
+      "id": "ac9672ea-89fc-4528-b4ce-1ba4482708ad",
+      "defId": "sprungbrett",
+      "x": 0,
+      "y": -1,
+      "rotation": 0,
+      "groupId": "b90e6a88-eb72-4b09-80e5-f66f9049181b"
+    },
+    {
+      "id": "e5fd6cf2-ab9c-49e4-910b-797da4028871",
+      "defId": "matte",
+      "x": -1,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "f48b904f-2fad-4320-b025-de56be33c179"
+    },
+    {
+      "id": "e393d346-b73b-43e1-a409-ebdc75f92d3f",
+      "defId": "matte",
+      "x": 1,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "f48b904f-2fad-4320-b025-de56be33c179"
+    },
+    {
+      "id": "1573dcaf-fb15-4ddc-92af-fa6aeb9d080f",
+      "defId": "barren",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "f48b904f-2fad-4320-b025-de56be33c179"
+    },
+    {
+      "id": "e614dd81-2860-45fa-bc68-fd11290ec4db",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "8ad1f068-6d2e-40c4-9d41-5b140ba2cf7b"
+    },
+    {
+      "id": "f1f78983-c8d3-453b-9157-e00aa236578e",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "3fdef0fa-66c6-4892-a346-e4711634b3f5"
+    },
+    {
+      "id": "6782b536-5379-4836-9ff9-f65cff58cd87",
+      "defId": "laeufer",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "9bbf6ca5-6eaa-4f66-ab72-575230a5d97d"
+    },
+    {
+      "id": "c3955209-782a-45c6-a8ff-298da3e0fec7",
+      "defId": "ringe1",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "3aa59445-fb52-47ce-86ca-21b1805dacbd"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/data/layouts/leer.json b/data/layouts/leer.json
new file mode 100644
index 0000000..f56d121
--- /dev/null
+++ b/data/layouts/leer.json
@@ -0,0 +1,71 @@
+{
+  "hall": {
+    "length": 27,
+    "width": 12,
+    "offset": 3
+  },
+  "groups": [
+    {
+      "id": "43a30ac2-c54e-4764-9559-e1283a2f54e2",
+      "label": "Bank",
+      "x": 6.700931919642857,
+      "y": 7.182723214285714,
+      "rotation": 15
+    },
+    {
+      "id": "9e0033c7-f440-43c5-a64a-e7716f5bd15d",
+      "label": "Bank",
+      "x": 7.7357310267857144,
+      "y": 2.806824776785714,
+      "rotation": 15
+    },
+    {
+      "id": "f5834127-5a25-43ed-b34a-33060f40e3e0",
+      "label": "Bank",
+      "x": 6.751556919642857,
+      "y": -7.141891741071428,
+      "rotation": 165
+    },
+    {
+      "id": "77ce9809-b0e0-4826-a52f-f399fad86bd7",
+      "label": "Bank",
+      "x": 7.985691964285714,
+      "y": -2.4423549107142857,
+      "rotation": 165
+    }
+  ],
+  "devices": [
+    {
+      "id": "41e75ffc-24e2-448a-93d7-397dccabdc34",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "43a30ac2-c54e-4764-9559-e1283a2f54e2"
+    },
+    {
+      "id": "7ba79d81-9f05-4b23-bf11-6460b53ef8b0",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "9e0033c7-f440-43c5-a64a-e7716f5bd15d"
+    },
+    {
+      "id": "5dde21f8-2a8d-42d8-abf5-3f8a2dfd8994",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "f5834127-5a25-43ed-b34a-33060f40e3e0"
+    },
+    {
+      "id": "76cda43b-d5c1-4adf-9a40-0b7e7152cc40",
+      "defId": "bank",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "77ce9809-b0e0-4826-a52f-f399fad86bd7"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/data/layouts/test.json b/data/layouts/test.json
new file mode 100644
index 0000000..7302136
--- /dev/null
+++ b/data/layouts/test.json
@@ -0,0 +1,102 @@
+{
+  "hall": {
+    "length": 27,
+    "width": 12,
+    "offset": 3
+  },
+  "groups": [
+    {
+      "id": "2b2904a6-71b5-499c-9f59-ca7060f18f6f",
+      "label": "Pferd-Aufbau",
+      "x": 4.451986607142857,
+      "y": -9.869313616071429,
+      "rotation": 0
+    },
+    {
+      "id": "7c16964f-aa81-4813-bb21-cef0b88abbf5",
+      "label": "Kasten (fest)",
+      "x": 3.225937499999999,
+      "y": 6.559252232142857,
+      "rotation": 0
+    },
+    {
+      "id": "2c4366b0-35a7-456f-b4ff-c54ed6ee1afe",
+      "label": "Matte",
+      "x": 0,
+      "y": 0,
+      "rotation": 0
+    },
+    {
+      "id": "765aaf47-fc9f-47c5-a7dc-853bea7d6057",
+      "label": "Matte",
+      "x": -0.0179296875,
+      "y": -2.1633147321428567,
+      "rotation": 0
+    },
+    {
+      "id": "9fe8695b-f0d6-40b1-bb6a-1cf175ea73fd",
+      "label": "Matte",
+      "x": 0.021997767857142855,
+      "y": -4.350435267857143,
+      "rotation": 0
+    }
+  ],
+  "devices": [
+    {
+      "id": "a7eb0eba-fd0e-4702-856c-723c53672b66",
+      "defId": "matte",
+      "x": 0,
+      "y": -0.75,
+      "rotation": 90,
+      "groupId": "2b2904a6-71b5-499c-9f59-ca7060f18f6f"
+    },
+    {
+      "id": "a8cc2833-de95-4db4-b222-fee58b995585",
+      "defId": "matte",
+      "x": 0,
+      "y": 0.75,
+      "rotation": 90,
+      "groupId": "2b2904a6-71b5-499c-9f59-ca7060f18f6f"
+    },
+    {
+      "id": "defaecdb-8b18-4a3b-b3a0-8233c9004bb8",
+      "defId": "pferd",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "2b2904a6-71b5-499c-9f59-ca7060f18f6f"
+    },
+    {
+      "id": "50d126d7-9d36-4c98-8edb-1f6d7ac6f419",
+      "defId": "kasten",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "7c16964f-aa81-4813-bb21-cef0b88abbf5"
+    },
+    {
+      "id": "f4d3cccf-5f26-4553-bbc0-ca3ff81ae169",
+      "defId": "matte",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "2c4366b0-35a7-456f-b4ff-c54ed6ee1afe"
+    },
+    {
+      "id": "f4292036-5dac-4edc-aac9-5e60f9fc5e00",
+      "defId": "matte",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "765aaf47-fc9f-47c5-a7dc-853bea7d6057"
+    },
+    {
+      "id": "6cb7a7f5-a89f-4aa2-9202-aed7bfd668af",
+      "defId": "matte",
+      "x": 0,
+      "y": 0,
+      "rotation": 0,
+      "groupId": "9fe8695b-f0d6-40b1-bb6a-1cf175ea73fd"
+    }
+  ]
+}
\ No newline at end of file