diff --git a/Jenkinsfile b/Jenkinsfile
index 932f591..d6c463c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,6 +10,7 @@ pipeline {
         VUE_CONTAINER_NAME = "chore-app-frontend"
         FLASK_CONTAINER_NAME = "chore-app-backend"
         NETWORK_NAME = "chore-app-net"
+        BASE_VERSION = '1.0.0'
     }
 
     stages {
@@ -32,8 +33,7 @@ pipeline {
         stage('Build Backend (Flask) App') {
             steps {
                 dir('.') {
-                    sh 'docker build -t ${BACKEND_IMAGE} .'
-                    sh 'docker tag ${BACKEND_IMAGE} ${BACKEND_IMAGE_LATEST}'
+                    sh """docker build --build-arg APP_BUILD=${BUILD_NUMBER} -t chore-app-backend:${BASE_VERSION} -t chore-app-backend:${BASE_VERSION}-${BUILD_NUMBER} -t chore-app-backend:latest ."""
                 }
             }
         }
@@ -65,6 +65,7 @@ pipeline {
                     docker run -d \\
                         --name ${FLASK_CONTAINER_NAME} \\
                         --network ${NETWORK_NAME} \\
+                        -e BUILD_NUMBER=${BUILD_NUMBER} \\
                         -v ${FLASK_CONTAINER_NAME}_data:/app/data \\
                         ${BACKEND_IMAGE_LATEST}
                 """
diff --git a/config/version.py b/config/version.py
new file mode 100644
index 0000000..0aeb9d2
--- /dev/null
+++ b/config/version.py
@@ -0,0 +1,12 @@
+# python
+# file: config/version.py
+import os
+
+BASE_VERSION = "1.0.0"  # update manually when releasing features
+
+def get_full_version() -> str:
+    """
+    Return semantic version with optional Jenkins build metadata, e.g. 1.2.3+build.456.
+    """
+    build = os.environ.get("BUILD_NUMBER") or os.environ.get("APP_BUILD")
+    return f"{BASE_VERSION}+build.{build}" if build else BASE_VERSION
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..f8966f9
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,30 @@
+# yaml
+version: '3.8'
+
+services:
+  chore-app-backend:
+    image: devserver.lan:5900/chore-app-backend:production
+    container_name: chore-app-backend
+    restart: unless-stopped
+    expose:
+      - "5000"
+    networks:
+      - chore-app-net
+    volumes:
+      - chore-app-backend-data:/app/data  # persists backend data
+
+  chore-app-frontend:
+    image: devserver.lan:5900/chore-app-frontend:production
+    container_name: chore-app-frontend
+    restart: unless-stopped
+    ports:
+      - "4600:443"
+    networks:
+      - chore-app-net
+
+networks:
+  chore-app-net:
+    driver: bridge
+
+volumes:
+  chore-app-backend-data: {}
\ No newline at end of file
diff --git a/main.py b/main.py
index f048433..67cc52b 100644
--- a/main.py
+++ b/main.py
@@ -1,12 +1,13 @@
 import sys, logging, os
 from config.paths import get_user_image_dir
-from flask import Flask, request
+from flask import Flask, request, jsonify
 from flask_cors import CORS
 
 from api.child_api import child_api
 from api.image_api import image_api
 from api.reward_api import reward_api
 from api.task_api import task_api
+from config.version import get_full_version
 from events.broadcaster import Broadcaster
 from events.sse import sse_response_for_user, send_to_user
 from db.default import initializeImages
@@ -29,6 +30,10 @@ app.register_blueprint(task_api)
 app.register_blueprint(image_api)
 CORS(app)
 
+@app.route("/version")
+def api_version():
+    return jsonify({"version": get_full_version()})
+
 @app.route("/events")
 def events():
     # Authenticate user or read a token
diff --git a/web/vue-app/src/layout/ParentLayout.vue b/web/vue-app/src/layout/ParentLayout.vue
index db8f8ab..6bff924 100644
--- a/web/vue-app/src/layout/ParentLayout.vue
+++ b/web/vue-app/src/layout/ParentLayout.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { useRouter, useRoute } from 'vue-router'
-import { computed } from 'vue'
+import { computed, ref, onMounted } from 'vue'
 import LoginButton from '../components/LoginButton.vue'
 
 const router = useRouter()
@@ -23,6 +23,20 @@ const showBack = computed(
       route.name === 'NotificationView'
     ),
 )
+
+// Version fetching
+const appVersion = ref('')
+onMounted(async () => {
+  try {
+    const resp = await fetch('/api/version')
+    if (resp.ok) {
+      const data = await resp.json()
+      appVersion.value = data.version || ''
+    }
+  } catch (e) {
+    appVersion.value = ''
+  }
+})
 </script>
 
 <template>
@@ -142,6 +156,8 @@ const showBack = computed(
     <main class="main-content">
       <router-view />
     </main>
+
+    <div v-if="appVersion" class="app-version">v{{ appVersion }}</div>
   </div>
 </template>
 
@@ -251,6 +267,19 @@ const showBack = computed(
   align-self: start;
 }
 
+.app-version {
+  position: fixed;
+  right: 18px;
+  bottom: 12px;
+  font-size: 0.92rem;
+  color: #cbd5e1; /* Brighter slate-200 */
+  opacity: 0.85;
+  z-index: 100;
+  pointer-events: none;
+  user-select: none;
+  font-family: monospace;
+}
+
 @media (max-width: 480px) {
   .back-btn {
     padding: 0.45rem 0.75rem;