changes

main.go

@@ -255,8 +255,19 @@ func main() {
 	}
 
 	// Start server
+	//
+	// The port comes from APP_PORT, defaulting to the 1122 this has always
+	// served on. It was hardcoded, which left `config.Load()`'s Port field
+	// dead and the Dockerfile's `EXPOSE 1009` describing a port nothing
+	// listened on — and made running a second copy locally, on a free port,
+	// impossible without editing this line.
+	port := os.Getenv("APP_PORT")
+	if port == "" {
+		port = "1122"
+	}
 	go func() {
-		if err := app.Listen(":1122"); err != nil {
+		log.Printf("🚀 listening on :%s", port)
+		if err := app.Listen(":" + port); err != nil {
 			log.Fatal("Server failed to start:", err)
 		}
 	}()