backend/src/main.rs

@@ -67,7 +67,10 @@ async fn main() -> std::io::Result<()> {
     env_logger::init();
 
     let address = "127.0.0.1";
-    let port = 8080;
+    let port = std::env::var("EXAMPLE_ELM_APP_PORT")
+        .unwrap_or("8080".to_string())
+        .parse()
+        .unwrap();
 
     info!("Starting server at http://{}:{}", address, port);