Maybe fix env?

src/app.py

@@ -48,7 +48,7 @@ def search_location(location_name) -> Optional[dict[str, float]]:
         "q": location_name,
         "format": "json"
     }
-
+    st.write(os.environ.get("pk_key"))
     response = requests.get(url, params=params, headers=headers)
 
     st.write("DEBUG:")