start work on interactive part

.gitignore

@@ -0,0 +1 @@
+.venv/

site/app.py

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+#!/usr/bin/env python
+
+from flask import Flask
+
+app = Flask(__name__)
+
+@app.route('/')
+def hello_world():
+    return render_template('index.html')
+
+if __name__ == '__main__':
+    app.run(host="0.0.0.0", port=8080)