diff --git a/.python-version b/.python-version
new file mode 100644
index 00000000..b6d8b761
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.11.8
diff --git a/app/app.py b/app/app.py
new file mode 100644
index 00000000..67e0180c
--- /dev/null
+++ b/app/app.py
@@ -0,0 +1,14 @@
+import os
+
+from flask import Flask
+
+app = Flask(__name__)
+
+
+@app.route("/")
+def hello_world():
+    return "Hello, World!"
+
+
+if __name__ == "__main__":
+    app.run(port=os.environ.get("PORT", 3000), host="0.0.0.0")