diff --git a/Dev-Notes.md b/Dev-Notes.md
index e2f12f9..c74dc2c 100644
--- a/Dev-Notes.md
+++ b/Dev-Notes.md
@@ -29,6 +29,10 @@ WHERE dev_eui = 'fffe2002c855b594';
 GRANT SELECT ON tbeam TO qgis;
 ```
 
+Reception was dramatically better when the hotspot was on the roof. Graduated symbology worked fine in QGIS.
+
+Next step: set up `NOTIFY` triggers in Postgres and enable them in QGIS: https://kartoza.com/blog/postgis/using-notify-to-automatically-refresh-layers-in-qgis
+
 ## 20240117
 
 Example SQL query to create a `qgis_friendly` view that converts Cayenne GPS location into PostGIS point, includes unique ID, RSSI, time, and gatewayId, and filters on gatewayId: