sercuring api key

app.py

@@ -1,8 +1,16 @@
 import streamlit as st
 import google.generativeai as genai
+import os
+
+# Securely fetch the API key from environment variables
+api_key = os.getenv("GEMINI_API_KEY")
+
+if not api_key:
+    st.error("API key not found. Please set the GEMINI_API_KEY environment variable.")
+    st.stop()
 
 # Set up Gemini API
-genai.configure(api_key="AIzaSyBQqw4RV3XdTFuPud7mkoHNPfxQm5EnOrc")  # Replace with your Gemini API key
+genai.configure(api_key=api_key)
 
 # Set up the model
 generation_config = {