add

app.py

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+import streamlit as st
+import leafmap.maplibregl as leafmap
+import ibis
+from ibis import _
+
+
+x = st.slider('Select a value')
+st.write(x, 'squared is', x * x)
+
+st.title('Select a redlined city')
+
+
+con = ibis.duckdb.connect()
+
+
+# LOAD RED LINING
+redlines = con.read_geo("/vsicurl/https://dsl.richmond.edu/panorama/redlining/static/mappinginequality.gpkg")
+
+option = st.selectbox(
+    "Select a city",
+    ("San Francisco", "Berkeley", "Oakland"),
+    index=None,
+    placeholder="Select contact method...",
+)
+
+city = redlines.filter(_.city == option)
+
+st.write("You selected:", option)
+
+
+
+# Next select code from our exersizes
+
+m = leafmap.Map()
+
+m.to_streamlit()
+