diff --git a/config/gateway.overlay.yaml b/config/gateway.overlay.yaml
new file mode 100644
index 00000000..8c4a1d28
--- /dev/null
+++ b/config/gateway.overlay.yaml
@@ -0,0 +1,20 @@
+# Gateway environment overlay
+# Multi-platform messaging, no cron
+
+model:
+  temperature: 0.5
+
+cron:
+  enabled: false
+
+gateway:
+  enabled: true
+  cors_origins: ["*"]
+  port: 8080
+
+session:
+  save_trajectories: true
+  max_iterations: 50
+
+logging:
+  level: "INFO"