diff --git a/database.js b/database.js
index 76f5b18..be03bb8 100644
--- a/database.js
+++ b/database.js
@@ -1,5 +1,9 @@
 const Database = require('better-sqlite3');
-const db = new Database('counter.db', { verbose: console.log });
+const path = require('path');
+
+// Use DB_PATH env var or default to counter.db
+const dbPath = process.env.DB_PATH || 'counter.db';
+const db = new Database(dbPath, { verbose: console.log });
 
 // Initialize database
 function init() {
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..f142db2
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,16 @@
+version: '3.8'
+
+services:
+  app:
+    build: .
+    ports:
+      - "3000:3000"
+    volumes:
+      - counter_data:/app/data
+    environment:
+      - DB_PATH=/app/data/counter.db
+      - PORT=3000
+    restart: unless-stopped
+
+volumes:
+  counter_data: