diff --git a/compose/demo.vps.override.yml b/compose/demo.vps.override.yml
new file mode 100644
index 0000000..7089de0
--- /dev/null
+++ b/compose/demo.vps.override.yml
@@ -0,0 +1,6 @@
+version: "3.9"
+
+services:
+  postgres:
+    ports:
+      - "127.0.0.1:${DB_PORT:-5433}:5432"