use cli flag instead of feature flag

src/cli/cfg.rs

@@ -39,6 +39,11 @@ pub struct ConfigOptsServe {
     /// Build platform: support Web & Desktop [default: "default_platform"]
     #[clap(long)]
     pub platform: Option<String>,
+
+    /// Build with hot reloading rsx [default: false]
+    #[clap(long)]
+    #[serde(default)]
+    pub hot_reload: bool,
 }
 
 /// Ensure the given value for `--public-url` is formatted correctly.

src/cli/serve/mod.rs

@@ -18,7 +18,9 @@ impl Serve {
         let mut crate_config = crate::CrateConfig::new()?;
 
         // change the relase state.
-        crate_config.with_release(self.serve.release);
+        crate_config
+            .with_release(self.serve.release)
+            .with_hot_reload(self.serve.hot_reload);
 
         if self.serve.example.is_some() {
             crate_config.as_example(self.serve.example.unwrap());