diff --git a/.env.example b/.env.example
index fd61a1af..35346e40 100644
--- a/.env.example
+++ b/.env.example
@@ -7,8 +7,8 @@ JWT_SECRET=your-secure-jwt-secret-here
 # Directory containing docker-compose files
 COMPOSE_DIR=/path/to/your/compose/files
 
-# HTTP server port (default: 3000)
-PORT=3000
+# HTTP server port (default: 1852)
+PORT=1852
 
 # Database and state directory inside the container (default: /app/data)
 DATA_DIR=/app/data
diff --git a/.github/actions/start-app/action.yml b/.github/actions/start-app/action.yml
index 89f12498..4898190d 100644
--- a/.github/actions/start-app/action.yml
+++ b/.github/actions/start-app/action.yml
@@ -13,7 +13,7 @@ inputs:
     default: '/tmp/compose'
   port:
     required: false
-    default: '3000'
+    default: '1852'
   skip-backend-build:
     description: >
       When 'true', skip running `npm run build` in backend/ and assume the
diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index d94c4131..4c94563a 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -126,12 +126,12 @@ jobs:
           # enough for `docker logs` in the trap to surface the stack trace.
           # The trap force-removes it explicitly whether it is still running
           # or already exited.
-          docker run -d --name sencho-smoke -p 3000:3000 localhost/sencho:release-scan
+          docker run -d --name sencho-smoke -p 1852:1852 localhost/sencho:release-scan
           trap 'docker logs sencho-smoke 2>&1 || true; docker rm -f sencho-smoke >/dev/null 2>&1 || true' EXIT
           for i in $(seq 1 30); do
-            if curl -fsS http://localhost:3000/api/health >/dev/null 2>&1; then
+            if curl -fsS http://localhost:1852/api/health >/dev/null 2>&1; then
               echo "Container healthy after ${i}s"
-              curl -s http://localhost:3000/api/health
+              curl -s http://localhost:1852/api/health
               exit 0
             fi
             sleep 1
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 65bbed85..1aa304e3 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -14,7 +14,7 @@ Thank you for your interest in contributing to Sencho!
    ```
 5. Start the dev servers:
    ```bash
-   cd backend && npm run dev    # Express + nodemon on :3000
+   cd backend && npm run dev    # Express + nodemon on :1852
    cd frontend && npm run dev   # Vite on :5173
    ```
 
diff --git a/Dockerfile b/Dockerfile
index 6d426e5b..8a90c722 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -184,11 +184,11 @@ RUN sed -i 's/\r//' /usr/local/bin/docker-entrypoint.sh \
   && chmod +x /usr/local/bin/docker-entrypoint.sh
 
 # Expose port
-EXPOSE 3000
+EXPOSE 1852
 
 # Health check - polls the public /api/health endpoint every 30s
 HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
-  CMD node -e "const h=require('http');h.get('http://localhost:3000/api/health',r=>{process.exit(r.statusCode===200?0:1)}).on('error',()=>process.exit(1))"
+  CMD node -e "const h=require('http');h.get('http://localhost:1852/api/health',r=>{process.exit(r.statusCode===200?0:1)}).on('error',()=>process.exit(1))"
 
 # Entrypoint ensures /app/data is writable and execs the CMD as root by default,
 # or drops to $SENCHO_USER via su-exec when that env var is set (see comment above).
diff --git a/README.md b/README.md
index 47c04ef6..39816c96 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ services:
     container_name: sencho
     restart: unless-stopped
     ports:
-      - "3000:3000"
+      - "1852:1852"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - ./data:/app/data
@@ -43,7 +43,7 @@ services:
 docker compose up -d
 ```
 
-Then open `http://your-server:3000` and create your admin account.
+Then open `http://your-server:1852` and create your admin account.
 
 See the [full documentation](https://docs.sencho.io) for configuration details, multi-node setup, and more.
 
@@ -57,7 +57,7 @@ cd backend && npm install && npm run dev
 cd frontend && npm install && npm run dev
 ```
 
-The frontend dev server proxies `/api` requests to the backend on port 3000.
+The frontend dev server proxies `/api` requests to the backend on port 1852.
 
 ## Contributing
 
diff --git a/backend/src/__tests__/nodes.test.ts b/backend/src/__tests__/nodes.test.ts
index 09d2f1cf..9f8ad3b2 100644
--- a/backend/src/__tests__/nodes.test.ts
+++ b/backend/src/__tests__/nodes.test.ts
@@ -63,7 +63,7 @@ describe('POST /api/nodes - api_url SSRF validation (C2 fix)', () => {
       .send({
         name: 'lan-node',
         type: 'remote',
-        api_url: 'http://192.168.1.50:3000',
+        api_url: 'http://192.168.1.50:1852',
         api_token: 'sometoken',
       });
     // Should succeed (201 or 200) - not a validation error
diff --git a/backend/src/__tests__/scheduler-service.test.ts b/backend/src/__tests__/scheduler-service.test.ts
index f58e5f48..daf824ea 100644
--- a/backend/src/__tests__/scheduler-service.test.ts
+++ b/backend/src/__tests__/scheduler-service.test.ts
@@ -1185,7 +1185,7 @@ describe('SchedulerService - executeUpdateRemote', () => {
   it('proxies update execution to remote node', async () => {
     mockGetNode.mockReturnValue({ id: 2, name: 'remote', type: 'remote', status: 'online' });
     mockGetProxyTarget.mockReturnValue({
-      apiUrl: 'http://remote:3000',
+      apiUrl: 'http://remote:1852',
       apiToken: 'test-token',
     });
 
@@ -1211,7 +1211,7 @@ describe('SchedulerService - executeUpdateRemote', () => {
     await svc.triggerTask(88);
 
     expect(mockFetch).toHaveBeenCalledWith(
-      'http://remote:3000/api/auto-update/execute',
+      'http://remote:1852/api/auto-update/execute',
       expect.objectContaining({
         method: 'POST',
         body: JSON.stringify({ target: 'web-app' }),
@@ -1226,7 +1226,7 @@ describe('SchedulerService - executeUpdateRemote', () => {
   it('records failure when remote node returns error', async () => {
     mockGetNode.mockReturnValue({ id: 2, name: 'remote', type: 'remote', status: 'online' });
     mockGetProxyTarget.mockReturnValue({
-      apiUrl: 'http://remote:3000',
+      apiUrl: 'http://remote:1852',
       apiToken: 'test-token',
     });
 
diff --git a/backend/src/__tests__/template-service.test.ts b/backend/src/__tests__/template-service.test.ts
index 2ba41660..964d8eec 100644
--- a/backend/src/__tests__/template-service.test.ts
+++ b/backend/src/__tests__/template-service.test.ts
@@ -210,11 +210,11 @@ describe('TemplateService', () => {
     it('handles values with special characters', () => {
       const result = service.generateEnvString({
         PASSWORD: 'p@ss=word!',
-        URL: 'http://localhost:3000',
+        URL: 'http://localhost:1852',
       });
 
       expect(result).toContain('PASSWORD=p@ss=word!');
-      expect(result).toContain('URL=http://localhost:3000');
+      expect(result).toContain('URL=http://localhost:1852');
     });
   });
 
diff --git a/backend/src/__tests__/users-rbac.test.ts b/backend/src/__tests__/users-rbac.test.ts
index f268f7d0..d12ea767 100644
--- a/backend/src/__tests__/users-rbac.test.ts
+++ b/backend/src/__tests__/users-rbac.test.ts
@@ -568,7 +568,7 @@ describe('Orphaned role assignment cleanup', () => {
   it('deleting a node removes its role assignments', async () => {
     const db = DatabaseService.getInstance();
     // Create a test node
-    const nodeId = db.addNode({ name: 'test-cleanup-node', type: 'remote', api_url: 'http://test:3000', api_token: '', compose_dir: '/tmp', is_default: false });
+    const nodeId = db.addNode({ name: 'test-cleanup-node', type: 'remote', api_url: 'http://test:1852', api_token: '', compose_dir: '/tmp', is_default: false });
     // Create a role assignment for this node
     const hash = await bcrypt.hash('password123', 1);
     const userId = db.addUser({ username: 'nodeorphan', password_hash: hash, role: 'viewer' });
diff --git a/backend/src/__tests__/validation.test.ts b/backend/src/__tests__/validation.test.ts
index 0ce3d954..173aaaea 100644
--- a/backend/src/__tests__/validation.test.ts
+++ b/backend/src/__tests__/validation.test.ts
@@ -63,7 +63,7 @@ describe('isValidStackName', () => {
 
 describe('isValidRemoteUrl', () => {
   it('accepts valid http URLs', () => {
-    const result = isValidRemoteUrl('http://192.168.1.10:3000');
+    const result = isValidRemoteUrl('http://192.168.1.10:1852');
     expect(result.valid).toBe(true);
   });
 
@@ -84,25 +84,25 @@ describe('isValidRemoteUrl', () => {
   });
 
   it('rejects localhost', () => {
-    expect(isValidRemoteUrl('http://localhost:3000').valid).toBe(false);
-    expect(isValidRemoteUrl('http://LOCALHOST:3000').valid).toBe(false);
+    expect(isValidRemoteUrl('http://localhost:1852').valid).toBe(false);
+    expect(isValidRemoteUrl('http://LOCALHOST:1852').valid).toBe(false);
   });
 
   it('rejects loopback IPs', () => {
-    expect(isValidRemoteUrl('http://127.0.0.1:3000').valid).toBe(false);
+    expect(isValidRemoteUrl('http://127.0.0.1:1852').valid).toBe(false);
     expect(isValidRemoteUrl('http://127.1.2.3').valid).toBe(false);
     // Node.js URL.hostname preserves brackets: new URL('http://[::1]').hostname === '[::1]'
-    expect(isValidRemoteUrl('http://[::1]:3000').valid).toBe(false);
+    expect(isValidRemoteUrl('http://[::1]:1852').valid).toBe(false);
   });
 
   it('rejects 0.0.0.0', () => {
-    expect(isValidRemoteUrl('http://0.0.0.0:3000').valid).toBe(false);
+    expect(isValidRemoteUrl('http://0.0.0.0:1852').valid).toBe(false);
   });
 
   it('allows LAN/private IPs (users need these for local network nodes)', () => {
     // Users legitimately run Sencho nodes on their LAN
-    expect(isValidRemoteUrl('http://192.168.1.100:3000').valid).toBe(true);
-    expect(isValidRemoteUrl('http://10.0.0.5:3000').valid).toBe(true);
+    expect(isValidRemoteUrl('http://192.168.1.100:1852').valid).toBe(true);
+    expect(isValidRemoteUrl('http://10.0.0.5:1852').valid).toBe(true);
   });
 });
 
diff --git a/backend/src/helpers/constants.ts b/backend/src/helpers/constants.ts
index b024eaaa..b8276056 100644
--- a/backend/src/helpers/constants.ts
+++ b/backend/src/helpers/constants.ts
@@ -3,7 +3,7 @@
 // monolith.
 
 // Server
-export const PORT = 3000;
+export const PORT = 1852;
 
 // Password policy
 export const MIN_PASSWORD_LENGTH = 8;
diff --git a/backend/src/routes/nodes.ts b/backend/src/routes/nodes.ts
index ef6c77c6..f63d9ac6 100644
--- a/backend/src/routes/nodes.ts
+++ b/backend/src/routes/nodes.ts
@@ -37,7 +37,7 @@ function mintPilotEnrollment(nodeId: number, req: Request): { token: string; exp
   const forwardedProto = req.headers['x-forwarded-proto'];
   const protoHeader = Array.isArray(forwardedProto) ? forwardedProto[0] : forwardedProto;
   const protocol = protoHeader || req.protocol || 'http';
-  const host = req.get('host') || 'localhost:3000';
+  const host = req.get('host') || 'localhost:1852';
   const primaryUrl = `${protocol}://${host}`;
 
   const dockerRun =
diff --git a/backend/src/utils/validation.ts b/backend/src/utils/validation.ts
index 789ed4c5..217ede68 100644
--- a/backend/src/utils/validation.ts
+++ b/backend/src/utils/validation.ts
@@ -22,7 +22,7 @@ export function isValidRemoteUrl(
     console.warn('[Validation] URL parse failure:', (e as Error).message, '— input:', raw);
     return {
       valid: false,
-      reason: 'API URL must be a valid URL (e.g. https://my-server.example.com:3000)',
+      reason: 'API URL must be a valid URL (e.g. https://my-server.example.com:1852)',
     };
   }
   if (!['http:', 'https:'].includes(url.protocol)) {
diff --git a/docker-compose.yml b/docker-compose.yml
index 7636a6b2..b51424f6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,7 +5,7 @@ services:
     container_name: sencho
     restart: unless-stopped
     ports:
-      - "3000:3000"
+      - "1852:1852"
     volumes:
       # Required: Docker Socket for container orchestration
       - /var/run/docker.sock:/var/run/docker.sock
diff --git a/docs/api-reference/overview.mdx b/docs/api-reference/overview.mdx
index 60113ac7..250fa4e5 100644
--- a/docs/api-reference/overview.mdx
+++ b/docs/api-reference/overview.mdx
@@ -8,7 +8,7 @@ Sencho exposes a REST API for automating stack deployments, managing webhooks, m
 ## Base URL
 
 ```
-https://your-sencho-instance:3000/api
+https://your-sencho-instance:1852/api
 ```
 
 Replace with your actual Sencho host and port. All API paths are prefixed with `/api`.
@@ -19,7 +19,7 @@ Authenticated endpoints require a **Bearer token** in the `Authorization` header
 
 ```bash
 curl -H "Authorization: Bearer YOUR_API_TOKEN" \
-  https://your-sencho-instance:3000/api/stacks
+  https://your-sencho-instance:1852/api/stacks
 ```
 
 <Note>
@@ -51,7 +51,7 @@ If omitted, the request targets the default node.
 # Target node ID 2
 curl -H "Authorization: Bearer TOKEN" \
   -H "x-node-id: 2" \
-  https://your-sencho-instance:3000/api/stacks
+  https://your-sencho-instance:1852/api/stacks
 ```
 
 ## Error format
@@ -132,7 +132,7 @@ Sencho also provides real-time streaming via WebSocket connections. These are no
 
 Stream live logs from a stack's containers.
 
-**URL:** `wss://your-sencho-instance:3000/api/stacks/{stackName}/logs?nodeId={nodeId}`
+**URL:** `wss://your-sencho-instance:1852/api/stacks/{stackName}/logs?nodeId={nodeId}`
 
 **Authentication:** Pass the token as a cookie (`sencho_token`) or Bearer token. For WebSocket connections, authentication is verified during the upgrade handshake.
 
@@ -142,7 +142,7 @@ Stream live logs from a stack's containers.
 import WebSocket from "ws";
 
 const ws = new WebSocket(
-  "wss://your-sencho-instance:3000/api/stacks/my-app/logs",
+  "wss://your-sencho-instance:1852/api/stacks/my-app/logs",
   { headers: { Cookie: "sencho_token=YOUR_JWT" } }
 );
 
@@ -156,7 +156,7 @@ curl -i -N \
   -H "Connection: Upgrade" \
   -H "Upgrade: websocket" \
   -H "Cookie: sencho_token=YOUR_JWT" \
-  https://your-sencho-instance:3000/api/stacks/my-app/logs
+  https://your-sencho-instance:1852/api/stacks/my-app/logs
 ```
 
 </CodeGroup>
@@ -165,7 +165,7 @@ curl -i -N \
 
 Open an interactive shell session inside a running container.
 
-**URL:** `wss://your-sencho-instance:3000/ws`
+**URL:** `wss://your-sencho-instance:1852/ws`
 
 **Authentication:** Cookie-based JWT only. API tokens with `read-only` or `deploy-only` scope are blocked.
 
@@ -174,7 +174,7 @@ Open an interactive shell session inside a running container.
 ```javascript Node.js
 import WebSocket from "ws";
 
-const ws = new WebSocket("wss://your-sencho-instance:3000/ws", {
+const ws = new WebSocket("wss://your-sencho-instance:1852/ws", {
   headers: { Cookie: "sencho_token=YOUR_JWT" },
 });
 
diff --git a/docs/api-reference/security.mdx b/docs/api-reference/security.mdx
index 07b2b05d..ce452caf 100644
--- a/docs/api-reference/security.mdx
+++ b/docs/api-reference/security.mdx
@@ -21,7 +21,7 @@ Writes are admin-only and rejected on replica nodes (policies are managed on the
 
 ```bash
 curl -H "Authorization: Bearer YOUR_API_TOKEN" \
-  https://your-sencho-instance:3000/api/security/policies
+  https://your-sencho-instance:1852/api/security/policies
 ```
 
 **Response:**
@@ -60,7 +60,7 @@ curl -H "Authorization: Bearer YOUR_API_TOKEN" \
 | `node_id` | number or `null` | no | Scope the policy to one node. `null` applies the policy fleet-wide. |
 
 ```bash
-curl -X POST https://your-sencho-instance:3000/api/security/policies \
+curl -X POST https://your-sencho-instance:1852/api/security/policies \
   -H "Authorization: Bearer YOUR_API_TOKEN" \
   -H "Content-Type: application/json" \
   -d '{
@@ -89,7 +89,7 @@ curl -X POST https://your-sencho-instance:3000/api/security/policies \
 Any of the create fields can be updated individually. Omitted fields are left unchanged.
 
 ```bash
-curl -X PUT https://your-sencho-instance:3000/api/security/policies/1 \
+curl -X PUT https://your-sencho-instance:1852/api/security/policies/1 \
   -H "Authorization: Bearer YOUR_API_TOKEN" \
   -H "Content-Type: application/json" \
   -d '{ "block_on_deploy": 0 }'
@@ -106,7 +106,7 @@ curl -X PUT https://your-sencho-instance:3000/api/security/policies/1 \
 **License:** Skipper or Admiral · **Role:** Admin
 
 ```bash
-curl -X DELETE https://your-sencho-instance:3000/api/security/policies/1 \
+curl -X DELETE https://your-sencho-instance:1852/api/security/policies/1 \
   -H "Authorization: Bearer YOUR_API_TOKEN"
 ```
 
@@ -156,7 +156,7 @@ Response rows include an `active` boolean computed from the `expires_at` timesta
 | `expires_at` | number or `null` | no | Unix timestamp in milliseconds. `null` for an indefinite suppression. |
 
 ```bash
-curl -X POST https://your-sencho-instance:3000/api/security/suppressions \
+curl -X POST https://your-sencho-instance:1852/api/security/suppressions \
   -H "Authorization: Bearer YOUR_API_TOKEN" \
   -H "Content-Type: application/json" \
   -d '{
@@ -179,7 +179,7 @@ curl -X POST https://your-sencho-instance:3000/api/security/suppressions \
 **License:** Skipper or Admiral · **Role:** Admin
 
 ```bash
-curl -X DELETE https://your-sencho-instance:3000/api/security/suppressions/3 \
+curl -X DELETE https://your-sencho-instance:1852/api/security/suppressions/3 \
   -H "Authorization: Bearer YOUR_API_TOKEN"
 ```
 
@@ -201,7 +201,7 @@ Accepts an image reference and starts an asynchronous scan. The response returns
 | `scanners` | `["vuln"]` or `["vuln","secret"]` | no | Omit for vuln-only. `secret` requires Skipper or Admiral. |
 
 ```bash
-curl -X POST https://your-sencho-instance:3000/api/security/scan \
+curl -X POST https://your-sencho-instance:1852/api/security/scan \
   -H "Authorization: Bearer YOUR_API_TOKEN" \
   -H "Content-Type: application/json" \
   -d '{ "imageRef": "nginx:1.27" }'
@@ -221,7 +221,7 @@ Supports filters: `imageRef`, `imageRefLike`, `status`, `limit`, `offset`. Respo
 
 ```bash
 curl -H "Authorization: Bearer YOUR_API_TOKEN" \
-  "https://your-sencho-instance:3000/api/security/scans?imageRefLike=nginx&limit=20"
+  "https://your-sencho-instance:1852/api/security/scans?imageRefLike=nginx&limit=20"
 ```
 
 ## Stack deploy with policy
@@ -266,7 +266,7 @@ HTTP 409 Conflict. The response body is parseable JSON so CI pipelines can branc
 Admins can bypass the gate on a per-deploy basis by passing `?ignorePolicy=true` on the deploy URL. The flag is only honored when the calling session resolves to an admin user; API tokens with read-only or deploy-only scope cannot bypass a policy.
 
 ```bash
-curl -X POST "https://your-sencho-instance:3000/api/stacks/myapp/deploy?ignorePolicy=true" \
+curl -X POST "https://your-sencho-instance:1852/api/stacks/myapp/deploy?ignorePolicy=true" \
   -H "Authorization: Bearer ADMIN_API_TOKEN"
 ```
 
diff --git a/docs/features/multi-node.mdx b/docs/features/multi-node.mdx
index 82df9ae0..f6f31df7 100644
--- a/docs/features/multi-node.mdx
+++ b/docs/features/multi-node.mdx
@@ -39,7 +39,7 @@ On your **primary** Sencho instance, open **Settings → Nodes** and click **+ A
 |-------|-------------|
 | **Name** | A display name (e.g. `Production VPS`, `media-box`) |
 | **Type** | Select **Remote** (or **Local** for an additional local Docker socket) |
-| **Sencho API URL** | The full HTTP/HTTPS URL of the remote instance (e.g. `http://192.168.1.50:3000`) |
+| **Sencho API URL** | The full HTTP/HTTPS URL of the remote instance (e.g. `http://192.168.1.50:1852`) |
 | **API Token** | The token you generated in Step 1 |
 | **Compose Directory** | The root directory where compose stack folders live on the remote node (defaults to `/app/compose`) |
 
@@ -156,8 +156,8 @@ There are three recommended approaches depending on your deployment:
 If all your Sencho instances are on the same local network, VPC, or subnet, HTTP is perfectly fine. The token never leaves the private network, so there is no interception risk.
 
 ```
-http://192.168.1.50:3000   ← safe on a private LAN
-http://10.0.1.20:3000      ← safe inside a VPC
+http://192.168.1.50:1852   ← safe on a private LAN
+http://10.0.1.20:1852      ← safe inside a VPC
 ```
 
 #### VPN tunnel (WireGuard, Tailscale)
@@ -169,7 +169,7 @@ http://10.0.1.20:3000      ← safe inside a VPC
 With a mesh VPN like [Tailscale](https://tailscale.com) or [WireGuard](https://www.wireguard.com/), each server gets a private IP on the VPN. Use those IPs as your Sencho API URLs:
 
 ```
-http://100.64.0.2:3000     ← Tailscale IP, encrypted by the VPN tunnel
+http://100.64.0.2:1852     ← Tailscale IP, encrypted by the VPN tunnel
 ```
 
 All traffic between nodes is encrypted by the VPN. Sencho does not need to do anything additional.
@@ -181,7 +181,7 @@ If you prefer TLS termination at each node, place a reverse proxy in front of ea
 <CodeGroup>
 ```text Caddyfile
 sencho.example.com {
-    reverse_proxy localhost:3000
+    reverse_proxy localhost:1852
 }
 ```
 
@@ -194,7 +194,7 @@ server {
     ssl_certificate_key /etc/letsencrypt/live/sencho.example.com/privkey.pem;
 
     location / {
-        proxy_pass http://localhost:3000;
+        proxy_pass http://localhost:1852;
         proxy_set_header Host $host;
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_http_version 1.1;
diff --git a/docs/features/vulnerability-scanning.mdx b/docs/features/vulnerability-scanning.mdx
index a371b34e..d6a8b12a 100644
--- a/docs/features/vulnerability-scanning.mdx
+++ b/docs/features/vulnerability-scanning.mdx
@@ -186,7 +186,7 @@ Only one policy is evaluated per deploy; use a single tight pattern rather than
 Policy CRUD endpoints are documented in the [Security API reference](/api-reference/security). A typical create call from CI looks like this:
 
 ```bash
-curl -X POST https://your-sencho-instance:3000/api/security/policies \
+curl -X POST https://your-sencho-instance:1852/api/security/policies \
   -H "Authorization: Bearer YOUR_API_TOKEN" \
   -H "Content-Type: application/json" \
   -d '{
diff --git a/docs/getting-started/configuration.mdx b/docs/getting-started/configuration.mdx
index ae1e1935..6be7c200 100644
--- a/docs/getting-started/configuration.mdx
+++ b/docs/getting-started/configuration.mdx
@@ -23,7 +23,7 @@ When you point `COMPOSE_DIR` at a directory, Sencho expects each stack to live i
 
 | Variable | Default | Description |
 |----------|---------|-------------|
-| `PORT` | `3000` | Port the Sencho HTTP server listens on. |
+| `PORT` | `1852` | Port the Sencho HTTP server listens on. |
 | `DATA_DIR` | `/app/data` | Directory where Sencho stores its SQLite database, node registry, and cached metrics. |
 | `FRONTEND_URL` | *(empty)* | Frontend origin for CORS. Only needed if the UI is served from a different domain than the API. Leave empty for same-origin setups. |
 | `NODE_ENV` | `production` | Set automatically in the Docker image. Only change this for local development. |
@@ -140,7 +140,7 @@ services:
     image: saelix/sencho:latest
     restart: unless-stopped
     ports:
-      - "3000:3000"
+      - "1852:1852"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - ./sencho-data:/app/data
@@ -180,7 +180,7 @@ server {
     server_name sencho.yourdomain.com;
 
     location / {
-        proxy_pass http://localhost:3000;
+        proxy_pass http://localhost:1852;
         proxy_http_version 1.1;
 
         # WebSocket support
@@ -211,7 +211,7 @@ server {
     ssl_certificate_key /etc/letsencrypt/live/sencho.yourdomain.com/privkey.pem;
 
     location / {
-        proxy_pass http://localhost:3000;
+        proxy_pass http://localhost:1852;
         proxy_http_version 1.1;
 
         # WebSocket support
@@ -235,7 +235,7 @@ Use [Certbot](https://certbot.eff.org/) to obtain and auto-renew certificates: `
 labels:
   - "traefik.enable=true"
   - "traefik.http.routers.sencho.rule=Host(`sencho.yourdomain.com`)"
-  - "traefik.http.services.sencho.loadbalancer.server.port=3000"
+  - "traefik.http.services.sencho.loadbalancer.server.port=1852"
 ```
 
 ### Traefik with SSL (Let's Encrypt)
@@ -246,7 +246,7 @@ labels:
   - "traefik.http.routers.sencho.rule=Host(`sencho.yourdomain.com`)"
   - "traefik.http.routers.sencho.entrypoints=websecure"
   - "traefik.http.routers.sencho.tls.certresolver=letsencrypt"
-  - "traefik.http.services.sencho.loadbalancer.server.port=3000"
+  - "traefik.http.services.sencho.loadbalancer.server.port=1852"
   # HTTP to HTTPS redirect
   - "traefik.http.routers.sencho-http.rule=Host(`sencho.yourdomain.com`)"
   - "traefik.http.routers.sencho-http.entrypoints=web"
@@ -262,7 +262,7 @@ labels:
 
 ```
 sencho.yourdomain.com {
-    reverse_proxy localhost:3000
+    reverse_proxy localhost:1852
 }
 ```
 
diff --git a/docs/getting-started/quickstart.mdx b/docs/getting-started/quickstart.mdx
index 49de298b..ef11311f 100644
--- a/docs/getting-started/quickstart.mdx
+++ b/docs/getting-started/quickstart.mdx
@@ -13,7 +13,7 @@ description: Get Sencho running in under five minutes.
 ```bash
 docker run -d \
   --name sencho \
-  -p 3000:3000 \
+  -p 1852:1852 \
   -v /var/run/docker.sock:/var/run/docker.sock \
   -v /opt/compose:/opt/compose \
   -v sencho_data:/app/data \
@@ -21,7 +21,7 @@ docker run -d \
   saelix/sencho:latest
 ```
 
-Open `http://localhost:3000` in your browser. On first boot you'll be prompted to create an admin account.
+Open `http://localhost:1852` in your browser. On first boot you'll be prompted to create an admin account.
 
 <Note>
   Replace `/opt/compose` with the path to your Compose projects directory. Every subdirectory inside it becomes a stack in Sencho. A `JWT_SECRET` is generated automatically on first boot; you do not need to provide one.
diff --git a/docs/getting-started/sso-quickstart.mdx b/docs/getting-started/sso-quickstart.mdx
index a694690a..3eb4d2d3 100644
--- a/docs/getting-started/sso-quickstart.mdx
+++ b/docs/getting-started/sso-quickstart.mdx
@@ -162,7 +162,7 @@ services:
     image: saelix/sencho:latest
     restart: unless-stopped
     ports:
-      - "3000:3000"
+      - "1852:1852"
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - ./sencho-data:/app/data
diff --git a/docs/openapi.yaml b/docs/openapi.yaml
index c72f6bb6..220091c3 100644
--- a/docs/openapi.yaml
+++ b/docs/openapi.yaml
@@ -44,7 +44,7 @@ servers:
       host:
         default: localhost
       port:
-        default: "3000"
+        default: "1852"
 
 security:
   - bearerAuth: []
@@ -1679,7 +1679,7 @@ paths:
                 api_url:
                   type: string
                   description: Remote Sencho instance URL (required for remote nodes).
-                  example: https://sencho.example.com:3000
+                  example: https://sencho.example.com:1852
                 api_token:
                   type: string
                   description: API token for authenticating with the remote Sencho instance.
diff --git a/docs/operations/self-hosting.mdx b/docs/operations/self-hosting.mdx
index e99436f1..165e9e0f 100644
--- a/docs/operations/self-hosting.mdx
+++ b/docs/operations/self-hosting.mdx
@@ -70,7 +70,7 @@ Sencho itself is lightweight. The majority of resource usage on your host comes
 
 ## Networking
 
-- **Listen port:** 3000 (fixed). Map it to any host port using Docker's `-p` flag or `ports` in your compose file
+- **Listen port:** 1852 (fixed). Map it to any host port using Docker's `-p` flag or `ports` in your compose file
 - **Inbound:** Only the listen port needs to be reachable (directly or through a reverse proxy)
 - **Outbound:** No outbound connections are required for local-only setups. If you use multi-node management, Sencho needs HTTP/HTTPS access to remote Sencho instances on their configured API URLs
 - **Health check:** `GET /api/health` returns `200` when the application is ready. The Docker image includes a built-in `HEALTHCHECK` that polls this endpoint every 30 seconds
diff --git a/docs/operations/troubleshooting.mdx b/docs/operations/troubleshooting.mdx
index cb018b57..ade20a7e 100644
--- a/docs/operations/troubleshooting.mdx
+++ b/docs/operations/troubleshooting.mdx
@@ -557,7 +557,7 @@ docker compose pull && docker compose up -d
 Sencho exposes a health endpoint for monitoring and container health checks:
 
 ```bash
-curl http://localhost:3000/api/health
+curl http://localhost:1852/api/health
 # {"status":"ok","uptime":12345.67}
 ```
 
diff --git a/frontend/src/components/NodeManager.tsx b/frontend/src/components/NodeManager.tsx
index 17159f15..916ec602 100644
--- a/frontend/src/components/NodeManager.tsx
+++ b/frontend/src/components/NodeManager.tsx
@@ -368,7 +368,7 @@ export function NodeManager() {
             <Label htmlFor="node-api-url">Sencho API URL</Label>
             <Input
               id="node-api-url"
-              placeholder="http://192.168.1.50:3000"
+              placeholder="http://192.168.1.50:1852"
               value={formData.api_url}
               onChange={(e) => setFormData({ ...formData, api_url: e.target.value })}
             />
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 592fafa3..2a43c9e3 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -27,12 +27,12 @@ export default defineConfig({
   server: {
     proxy: {
       '/api': {
-        target: 'http://localhost:3000',
+        target: 'http://localhost:1852',
         changeOrigin: true,
         ws: true,
       },
       '/ws': {
-        target: 'http://localhost:3000',
+        target: 'http://localhost:1852',
         changeOrigin: true,
         ws: true,
       },