Create app.py

app.py

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+import streamlit as st
+
+# Page setup
+st.set_page_config(page_title="Hello World App", page_icon="👋", layout="centered")
+
+# Simple UI
+st.title("👋 Hello, Hugging Face + Streamlit!")
+st.write("If you see this message, your Space is working correctly 🚀")
+
+name = st.text_input("What's your name?")
+if st.button("Say Hello"):
+    if name.strip():
+        st.success(f"Hello, {name}! 🎉")
+    else:
+        st.warning("Please enter your name above 👆")