Make address and port configurable

src/main.rs

@@ -17,9 +17,8 @@ fn main() {
     let mut context = Context::default();
     let mut args = env::args();
     args.next();
-    let port = args.next().unwrap_or("8080".to_string());
-
-    let listener = TcpListener::bind(format!("127.0.0.1:{port}")).unwrap();
+    let address = args.next().unwrap_or("127.0.0.1:8080".to_string());
+    let listener = TcpListener::bind(address).unwrap();
 
     for stream in listener.incoming() {
         let stream = stream.unwrap();