feat: set port configurable

src/cli/serve/mod.rs

@@ -69,7 +69,7 @@ impl Serve {
         Serve::regen_dev_page(&crate_config)?;
 
         // start the develop server
-        server::startup(crate_config.clone()).await?;
+        server::startup(self.serve.port, crate_config.clone()).await?;
 
         Ok(())
     }