diff --git a/main.py b/main.py
new file mode 100644
index 0000000..7afd173
--- /dev/null
+++ b/main.py
@@ -0,0 +1,5 @@
+from flask import Flask
+from routes.user import user_bp
+app = Flask(__name__)
+app.register_blueprint(user_bp, url_prefix='/api/users')
+if __name__ == '__main__': app.run(port=5000, debug=True)
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..2ed68a4
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+flask>=3.0.0
+gunicorn>=21.2.0
+sqlalchemy>=2.0.0
diff --git a/routes/user.py b/routes/user.py
new file mode 100644
index 0000000..334186e
--- /dev/null
+++ b/routes/user.py
@@ -0,0 +1,6 @@
+from flask import Blueprint, jsonify
+user_bp = Blueprint('user', __name__)
+@user_bp.route('/')
+def list_users(): return jsonify([])
+@user_bp.route('/<int:id>')
+def get_user(id): return jsonify({'id': id})