diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index e69de29..d552858 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -0,0 +1,176 @@
+#[cfg(target_os = "macos")]
+use tauri::MenuItem;
+
+use tauri::{
+    CustomMenuItem, Menu, Submenu, WindowMenuEvent, window::PlatformWebview, Config
+};
+
+
+pub fn get_menu() -> Menu {
+    // first menu
+    let hide = CustomMenuItem::new("hide", "Hide");
+    let close = CustomMenuItem::new("close", "Close");
+    let quit = CustomMenuItem::new("quit", "Quit");
+    #[cfg(target_os = "macos")]
+    let first_menu = Menu::new()
+        .add_native_item(MenuItem::EnterFullScreen)
+        .add_native_item(MenuItem::Minimize)
+        .add_native_item(MenuItem::Separator)
+        .add_native_item(MenuItem::Copy)
+        .add_native_item(MenuItem::Cut)
+        .add_native_item(MenuItem::Paste)
+        .add_native_item(MenuItem::Undo)
+        .add_native_item(MenuItem::Redo)
+        .add_native_item(MenuItem::SelectAll)
+        .add_native_item(MenuItem::Separator)
+        .add_item(hide)
+        .add_item(close)
+        .add_item(quit);
+    #[cfg(any(target_os = "linux", target_os = "windows"))]
+    let first_menu = Menu::new()
+        .add_item(hide)
+        .add_item(close)
+        .add_item(quit);
+    let first_menu = Submenu::new("File", first_menu);
+    // Hot Key 
+    // let top = CustomMenuItem::new("top", "Top (↑)");
+    // let buttom = CustomMenuItem::new("buttom", "Bottom (↓)");
+    // let previous = CustomMenuItem::new("previous", "Previous (←)");
+    // let next = CustomMenuItem::new("next", "next (→)");
+    // let refresh = CustomMenuItem::new("refresh", "Refresh");
+    let zoom_out = CustomMenuItem::new("zoom_out", "Zoom Out (125%)");
+    let zoom_in = CustomMenuItem::new("zoom_in", "Zoom In (75%)");
+    let zoom_reset = CustomMenuItem::new("reset", "Zoom Reset");
+    let hot_key = Menu::new()
+        // .add_item(top)
+        // .add_item(buttom)
+        // .add_item(previous)
+        // .add_item(next)
+        // .add_item(refresh)
+        .add_item(zoom_in)
+        .add_item(zoom_out)
+        .add_item(zoom_reset);
+    let hot_key_menu = Submenu::new("Hot Key",  hot_key);
+
+    // Help
+    // let instructions = CustomMenuItem::new("instruction", "Instruction");
+    // let about = CustomMenuItem::new("about", "About");
+    // let help = Menu::new()
+    //     .add_item(instructions)
+    //     .add_item(about);
+    // let help_menu = Submenu::new("Help", help);
+    let menu = Menu::new()
+        .add_submenu(first_menu)
+        .add_submenu(hot_key_menu);
+        // .add_submenu(help_menu);
+    menu
+
+
+}
+
+
+pub fn set_zoom(webview: PlatformWebview, zoom_value: f64) {
+    #[cfg(target_os = "linux")]
+     {
+       // see https://docs.rs/webkit2gtk/0.18.2/webkit2gtk/struct.WebView.html
+       // and https://docs.rs/webkit2gtk/0.18.2/webkit2gtk/trait.WebViewExt.html
+       use webkit2gtk::traits::WebViewExt;
+       webview.inner().set_zoom_level(zoom_value);
+     }
+
+     #[cfg(windows)]
+     unsafe {
+       // see https://docs.rs/webview2-com/0.19.1/webview2_com/Microsoft/Web/WebView2/Win32/struct.ICoreWebView2Controller.html
+       webview.controller().SetZoomFactor(zoom_value).unwrap();
+     }
+
+     #[cfg(target_os = "macos")]
+     unsafe {
+       let () = msg_send![webview.inner(), setPageZoom: zoom_value];
+       let () = msg_send![webview.controller(), removeAllUserScripts];
+       let bg_color: cocoa::base::id = msg_send![class!(NSColor), colorWithDeviceRed:0.5 green:0.2 blue:0.4 alpha:1.];
+       let () = msg_send![webview.ns_window(), setBackgroundColor: bg_color];
+     }
+}
+
+pub fn set_zoom_out(webview: PlatformWebview) {
+    set_zoom(webview, 1.25);
+}
+
+
+pub fn set_zoom_in(webview: PlatformWebview) {
+    set_zoom(webview, 0.75);
+}
+
+
+pub fn zoom_reset(webview: PlatformWebview) {
+    set_zoom(webview, 1.0);
+}
+
+pub fn menu_event_handle(event: WindowMenuEvent) {
+    match event.menu_item_id() {
+        "hide" => event.window().hide().expect("can't hide window"),
+        "close" => event.window().close().expect("can't close window"),
+        "quit" => std::process::exit(0),
+        "zoom_out" => {
+            event.window()
+                .with_webview(set_zoom_out)
+                .expect("can't set zoom out");
+        },
+        "zoom_in" => {
+            event.window()
+                .with_webview(set_zoom_in)
+                .expect("can't set zoom in");
+        },
+        "reset" => {
+            event.window()
+                .with_webview(zoom_reset)
+                .expect("can't reset zoom");
+        },
+        _ => {},
+    }
+}
+
+
+pub mod pake {
+    use serde::Deserialize;
+
+    #[derive(Debug, Deserialize)]
+    pub struct WindowConfig {
+        pub url: String,
+        pub transparent: bool,
+        pub fullscreen: bool,
+        pub width: f64,
+        pub height: f64,
+        pub resizable: bool,
+        pub url_type: String
+    }
+
+
+    #[derive(Debug, Deserialize)]
+    pub struct UserAgent {
+        pub macos: String, 
+        pub linux: String,
+        pub windows: String,
+    }
+    
+    #[derive(Debug, Deserialize)]
+    pub struct PakeConfig {
+        pub windows: Vec<WindowConfig>,
+        pub user_agent: UserAgent,
+    }
+}
+
+
+use pake::PakeConfig;
+
+pub fn get_pake_config() -> (PakeConfig, Config){
+    let pake_config_path = include_str!("../pake.json");
+    let pake_config: PakeConfig = serde_json::from_str(pake_config_path)
+        .expect("failed to parse pake config");
+    // println!("{:#?}", config);
+    let tauri_config_path = include_str!("../tauri.conf.json");
+    let tauri_config: Config = serde_json::from_str(tauri_config_path)
+        .expect("failed to parse tauri config");
+    (pake_config, tauri_config)
+}
\ No newline at end of file
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 611f93a..1cd23e2 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -2,122 +2,15 @@
     all(not(debug_assertions), target_os = "windows"),
     windows_subsystem = "windows"
 )]
-#[cfg(target_os = "macos")]
-use tauri::MenuItem;
 
 use tauri::{
-    CustomMenuItem, Menu, Submenu, WindowBuilder, App, Config,
-    Window, WindowUrl, WindowMenuEvent, window::PlatformWebview,
+    CustomMenuItem, WindowBuilder, App, Config, Window, WindowUrl, 
     SystemTrayMenu, SystemTray, SystemTrayEvent, Manager
 };
 
-// use tauri::Config;
-
-pub mod pake {
-    use serde::Deserialize;
-
-    #[derive(Debug, Deserialize)]
-    pub struct WindowConfig {
-        pub url: String,
-        pub transparent: bool,
-        pub fullscreen: bool,
-        pub width: f64,
-        pub height: f64,
-        pub resizable: bool,
-        pub url_type: String
-    }
-
-
-    #[derive(Debug, Deserialize)]
-    pub struct UserAgent {
-        pub macos: String, 
-        pub linux: String,
-        pub windows: String,
-    }
-    
-    #[derive(Debug, Deserialize)]
-    pub struct PakeConfig {
-        pub windows: Vec<WindowConfig>,
-        pub user_agent: UserAgent,
-    }
-}
-
-use pake::PakeConfig;
-
-pub fn get_pake_config() -> (PakeConfig, Config){
-    let pake_config_path = include_str!("../pake.json");
-    let pake_config: PakeConfig = serde_json::from_str(pake_config_path)
-        .expect("failed to parse pake config");
-    // println!("{:#?}", config);
-    let tauri_config_path = include_str!("../tauri.conf.json");
-    let tauri_config: Config = serde_json::from_str(tauri_config_path)
-        .expect("failed to parse tauri config");
-    (pake_config, tauri_config)
-}
-
-
-pub fn get_menu() -> Menu {
-    // first menu
-    let hide = CustomMenuItem::new("hide", "Hide");
-    let close = CustomMenuItem::new("close", "Close");
-    let quit = CustomMenuItem::new("quit", "Quit");
-    #[cfg(target_os = "macos")]
-    let first_menu = Menu::new()
-        .add_native_item(MenuItem::EnterFullScreen)
-        .add_native_item(MenuItem::Minimize)
-        .add_native_item(MenuItem::Separator)
-        .add_native_item(MenuItem::Copy)
-        .add_native_item(MenuItem::Cut)
-        .add_native_item(MenuItem::Paste)
-        .add_native_item(MenuItem::Undo)
-        .add_native_item(MenuItem::Redo)
-        .add_native_item(MenuItem::SelectAll)
-        .add_native_item(MenuItem::Separator)
-        .add_item(debug)
-        .add_item(hide)
-        .add_item(close)
-        .add_item(quit);
-    #[cfg(any(target_os = "linux", target_os = "windows"))]
-    let first_menu = Menu::new()
-        .add_item(hide)
-        .add_item(close)
-        .add_item(quit);
-    let first_menu = Submenu::new("File", first_menu);
-    // Hot Key 
-    // let top = CustomMenuItem::new("top", "Top (↑)");
-    // let buttom = CustomMenuItem::new("buttom", "Bottom (↓)");
-    // let previous = CustomMenuItem::new("previous", "Previous (←)");
-    // let next = CustomMenuItem::new("next", "next (→)");
-    // let refresh = CustomMenuItem::new("refresh", "Refresh");
-    let zoom_out = CustomMenuItem::new("zoom_out", "Zoom Out (125%)");
-    let zoom_in = CustomMenuItem::new("zoom_in", "Zoom In (75%)");
-    let zoom_reset = CustomMenuItem::new("reset", "Zoom Reset");
-    let hot_key = Menu::new()
-        // .add_item(top)
-        // .add_item(buttom)
-        // .add_item(previous)
-        // .add_item(next)
-        // .add_item(refresh)
-        .add_item(zoom_in)
-        .add_item(zoom_out)
-        .add_item(zoom_reset);
-    let hot_key_menu = Submenu::new("Hot Key",  hot_key);
-
-    // Help
-    // let instructions = CustomMenuItem::new("instruction", "Instruction");
-    // let about = CustomMenuItem::new("about", "About");
-    // let help = Menu::new()
-    //     .add_item(instructions)
-    //     .add_item(about);
-    // let help_menu = Submenu::new("Help", help);
-    let menu = Menu::new()
-        .add_submenu(first_menu)
-        .add_submenu(hot_key_menu);
-        // .add_submenu(help_menu);
-    menu
-
-
-}
+#[cfg(target_os = "macos")]
+use app::{get_menu, menu_event_handle};
+use app::{get_pake_config, pake::PakeConfig};
 
 
 pub fn get_data_dir(tauri_config: Config) -> std::path::PathBuf {
@@ -183,68 +76,6 @@ pub fn get_window(app: & mut App, config: PakeConfig, data_dir: std::path::PathB
     
 }
 
-pub fn set_zoom(webview: PlatformWebview, zoom_value: f64) {
-    #[cfg(target_os = "linux")]
-     {
-       // see https://docs.rs/webkit2gtk/0.18.2/webkit2gtk/struct.WebView.html
-       // and https://docs.rs/webkit2gtk/0.18.2/webkit2gtk/trait.WebViewExt.html
-       use webkit2gtk::traits::WebViewExt;
-       webview.inner().set_zoom_level(zoom_value);
-     }
-
-     #[cfg(windows)]
-     unsafe {
-       // see https://docs.rs/webview2-com/0.19.1/webview2_com/Microsoft/Web/WebView2/Win32/struct.ICoreWebView2Controller.html
-       webview.controller().SetZoomFactor(zoom_value).unwrap();
-     }
-
-     #[cfg(target_os = "macos")]
-     unsafe {
-       let () = msg_send![webview.inner(), setPageZoom: zoom_value];
-       let () = msg_send![webview.controller(), removeAllUserScripts];
-       let bg_color: cocoa::base::id = msg_send![class!(NSColor), colorWithDeviceRed:0.5 green:0.2 blue:0.4 alpha:1.];
-       let () = msg_send![webview.ns_window(), setBackgroundColor: bg_color];
-     }
-}
-
-pub fn set_zoom_out(webview: PlatformWebview) {
-    set_zoom(webview, 1.25);
-}
-
-
-pub fn set_zoom_in(webview: PlatformWebview) {
-    set_zoom(webview, 0.75);
-}
-
-
-pub fn zoom_reset(webview: PlatformWebview) {
-    set_zoom(webview, 1.0);
-}
-
-pub fn menu_event_handle(event: WindowMenuEvent) {
-    match event.menu_item_id() {
-        "hide" => event.window().hide().expect("can't hide window"),
-        "close" => event.window().close().expect("can't close window"),
-        "quit" => std::process::exit(0),
-        "zoom_out" => {
-            event.window()
-                .with_webview(set_zoom_out)
-                .expect("can't set zoom out");
-        },
-        "zoom_in" => {
-            event.window()
-                .with_webview(set_zoom_in)
-                .expect("can't set zoom in");
-        },
-        "reset" => {
-            event.window()
-                .with_webview(zoom_reset)
-                .expect("can't reset zoom");
-        },
-        _ => {},
-    }
-}
-
 
 pub fn get_system_tray() -> SystemTray {
     let hide = CustomMenuItem::new("hide".to_string(), "Hide");