diff --git a/src/main/java/org/cubewhy/celestial/Celestial.java b/src/main/java/org/cubewhy/celestial/Celestial.java
index 170caad9..9ccb11f3 100644
--- a/src/main/java/org/cubewhy/celestial/Celestial.java
+++ b/src/main/java/org/cubewhy/celestial/Celestial.java
@@ -25,6 +25,8 @@
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
 import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
@@ -183,7 +185,22 @@ private static void run(String[] args) throws Exception {
         launcherFrame = new GuiLauncher();
         new CreateLauncherEvent(launcherFrame).call();
         launcherFrame.setVisible(true);
-        launcherFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+
+        launcherFrame.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowClosing(WindowEvent e) {
+                log.info("Closing celestial, dumping configs...");
+                // dump configs
+                proxy.save();
+                config.save();
+                launcherFrame.dispose();
+            }
+
+            @Override
+            public void windowClosed(WindowEvent e) {
+                System.exit(0); // exit java
+            }
+        });
     }
 
     private static void checkJava() throws IOException {
@@ -254,6 +271,7 @@ private static void initConfig() {
                 .initValue("program-args", new JsonArray()) // args of the game
                 .initValue("javaagents", new JsonObject()); // lc addon
         // init language
+        config.save();
         log.info("Initializing language manager");
         locale = Locale.forLanguageTag(config.getValue("language").getAsString());
         userLanguage = locale.getLanguage();
diff --git a/src/main/java/org/cubewhy/celestial/files/ConfigFile.java b/src/main/java/org/cubewhy/celestial/files/ConfigFile.java
index 5dd35bd4..d031e830 100644
--- a/src/main/java/org/cubewhy/celestial/files/ConfigFile.java
+++ b/src/main/java/org/cubewhy/celestial/files/ConfigFile.java
@@ -23,27 +23,27 @@ public ConfigFile(File file) {
 
     public ConfigFile setValue(String key, String value) {
         this.config.addProperty(key, value);
-        return this.save();
+        return this;
     }
 
     public ConfigFile setValue(String key, char value) {
         this.config.addProperty(key, value);
-        return this.save();
+        return this;
     }
 
     public ConfigFile setValue(String key, Number value) {
         this.config.addProperty(key, value);
-        return this.save();
+        return this;
     }
 
     public ConfigFile setValue(String key, boolean value) {
         this.config.addProperty(key, value);
-        return this.save();
+        return this;
     }
 
     public ConfigFile setValue(String key, JsonObject value) {
         this.config.add(key, value);
-        return this.save();
+        return this;
     }
 
     public ConfigFile initValue(String key, JsonElement value) {
@@ -51,7 +51,7 @@ public ConfigFile initValue(String key, JsonElement value) {
             log.info("Init value " + key + " -> " + value);
             this.config.add(key, value);
         }
-        return this.save();
+        return this;
     }
 
     public ConfigFile initValue(String key, String value) {
diff --git a/src/main/java/org/cubewhy/celestial/files/ProxyConfig.java b/src/main/java/org/cubewhy/celestial/files/ProxyConfig.java
index db4f7c72..f2233cd8 100644
--- a/src/main/java/org/cubewhy/celestial/files/ProxyConfig.java
+++ b/src/main/java/org/cubewhy/celestial/files/ProxyConfig.java
@@ -18,6 +18,7 @@
 import java.nio.charset.StandardCharsets;
 
 public class ProxyConfig extends ConfigFile {
+
     @Getter
     public static class Mirror {
 
@@ -53,10 +54,14 @@ public boolean getState() {
     }
 
     public Proxy getProxy() throws MalformedURLException {
-        URL address = new URL(this.getValue("proxy").getAsString());
+        URL address = new URL(this.getProxyAddress());
         return new Proxy(getType(address.getProtocol()), new InetSocketAddress(address.getHost(), address.getPort()));
     }
 
+    public String getProxyAddress() {
+        return this.getValue("proxy").getAsString();
+    }
+
     private Proxy.Type getType(@NotNull String protocol) {
         return switch (protocol) {
             case "http" -> Proxy.Type.HTTP;
diff --git a/src/main/java/org/cubewhy/celestial/gui/dialogs/ArgsConfigDialog.java b/src/main/java/org/cubewhy/celestial/gui/dialogs/ArgsConfigDialog.java
index fc9c5795..140d3766 100644
--- a/src/main/java/org/cubewhy/celestial/gui/dialogs/ArgsConfigDialog.java
+++ b/src/main/java/org/cubewhy/celestial/gui/dialogs/ArgsConfigDialog.java
@@ -85,7 +85,6 @@ private void addArg(String arg, @NotNull DefaultListModel<String> model) {
         this.array.add(arg);
         model.addElement(arg);
         log.info("Add a arg to " + this.key + " -> " + arg);
-        config.save();
     }
 
     private void removeArg(int index, @NotNull DefaultListModel<String> model) {
@@ -93,6 +92,5 @@ private void removeArg(int index, @NotNull DefaultListModel<String> model) {
         model.remove(index);
         this.array.remove(index);
         log.info("Remove a arg to " + this.key + " -> " + arg);
-        config.save();
     }
 }
diff --git a/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java b/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java
index 50e8ae66..222b83a3 100644
--- a/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java
+++ b/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java
@@ -289,6 +289,23 @@ private void initGui() {
         claim("program-args", panelGame);
         claim("resize");
 
+        JPanel panelProxy = new JPanel();
+        panelProxy.setBorder(new TitledBorder(null, f.getString("gui.settings.proxy"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, Color.orange));
+        panelProxy.setLayout(new VerticalFlowLayout(VerticalFlowLayout.LEFT));
+
+        JPanel p18 = new JPanel();
+        p18.add(new JLabel(f.getString("gui.settings.proxy.address")));
+
+        p18.add(getAutoSaveTextField(proxy.getConfig(), "proxy"));
+        p18.add(getAutoSaveCheckBox(proxy.getConfig(), "state", f.getString("gui.settings.proxy.state")));
+
+        JButton btnMirror = new JButton(f.getString("gui.settings.proxy.mirror"));
+        // TODO GuiMirror
+        panelProxy.add(btnMirror);
+        panelProxy.add(p18);
+
+        panel.add(panelProxy);
+
         if (config.getConfig().keySet().size() != claimed.size()) {
             JPanel panelUnclaimed = new JPanel();
             panelUnclaimed.setBorder(new TitledBorder(null, f.getString("gui.settings.unclaimed"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, Color.orange));
@@ -315,7 +332,7 @@ private JButton getSelectInstallationButton(@NotNull File Installation, String n
 
     private void setModLoaderInstallation(String key, @NotNull File file) {
         config.getValue("addon").getAsJsonObject().getAsJsonObject(key).addProperty("installation", file.getPath());
-        config.save();
+        
     }
 
     /**
@@ -338,7 +355,7 @@ private void toggleLoader(@Nullable String type) {
         JsonObject cn = addon.get("lunarcn").getAsJsonObject();
         weave.addProperty("enable", b1);
         cn.addProperty("enable", b2);
-        config.save();
+        
     }
 
     private boolean isLoaderSelected(String type) {
@@ -353,7 +370,7 @@ private boolean isLoaderSelected(String type) {
             log.warn("Weave cannot load with LunarCN, auto corrected");
             weave.addProperty("enable", false);
             cn.addProperty("enable", false);
-            config.save();
+            
             return isLoaderSelected(null);
         }
         if (type == null) {
@@ -421,7 +438,6 @@ private void addUnclaimed(JPanel basePanel, @NotNull JsonObject json) {
                 v = source.getSelectedItem().toString();
             }
             json.addProperty(key, v);
-            config.save();
         });
         return cb;
     }
@@ -455,7 +471,6 @@ private static JSpinner getAutoSaveSpinner(@NotNull JsonObject json, String key,
             JSpinner source = (JSpinner) e.getSource();
             Number v = (Number) source.getValue();
             json.addProperty(key, v);
-            config.save();
         });
         textField.setColumns(20);
         return spinner;
@@ -469,7 +484,6 @@ private static JCheckBox getAutoSaveCheckBox(@NotNull JsonObject json, String ke
         cb.addActionListener((e) -> {
             JCheckBox source = (JCheckBox) e.getSource();
             json.addProperty(key, source.isSelected());
-            config.save();
         });
         return cb;
     }
@@ -482,7 +496,7 @@ private static JTextField getAutoSaveTextField(@NotNull JsonObject json, String
             JTextField source = (JTextField) e.getSource();
             // save value
             json.addProperty(key, source.getText());
-            config.save();
+            
         });
         input.addFocusListener(new FocusAdapter() {
             @Override
@@ -490,7 +504,6 @@ public void focusLost(FocusEvent e) {
                 JTextField source = (JTextField) e.getSource();
                 // save value
                 json.addProperty(key, source.getText());
-                config.save();
             }
         });
         return input;
diff --git a/src/main/resources/languages/launcher.properties b/src/main/resources/languages/launcher.properties
index 92371364..5acd4b0f 100644
--- a/src/main/resources/languages/launcher.properties
+++ b/src/main/resources/languages/launcher.properties
@@ -195,4 +195,8 @@ gui.settings.folder.main=Config Folder
 gui.settings.folder.theme=Themes Folder
 gui.settings.folder.log=Logs Folder
 gui.addon.toggle.disable=Disable
-gui.addon.toggle.enable=Enable
\ No newline at end of file
+gui.addon.toggle.enable=Enable
+gui.settings.proxy=Proxy
+gui.settings.proxy.mirror=Mirror
+gui.settings.proxy.address=Proxy address:
+gui.settings.proxy.state=Use proxy
\ No newline at end of file
diff --git a/src/main/resources/languages/launcher_en.properties b/src/main/resources/languages/launcher_en.properties
index 92371364..5acd4b0f 100644
--- a/src/main/resources/languages/launcher_en.properties
+++ b/src/main/resources/languages/launcher_en.properties
@@ -195,4 +195,8 @@ gui.settings.folder.main=Config Folder
 gui.settings.folder.theme=Themes Folder
 gui.settings.folder.log=Logs Folder
 gui.addon.toggle.disable=Disable
-gui.addon.toggle.enable=Enable
\ No newline at end of file
+gui.addon.toggle.enable=Enable
+gui.settings.proxy=Proxy
+gui.settings.proxy.mirror=Mirror
+gui.settings.proxy.address=Proxy address:
+gui.settings.proxy.state=Use proxy
\ No newline at end of file
diff --git a/src/main/resources/languages/launcher_ja.properties b/src/main/resources/languages/launcher_ja.properties
index f2801783..ec43576f 100644
--- a/src/main/resources/languages/launcher_ja.properties
+++ b/src/main/resources/languages/launcher_ja.properties
@@ -204,3 +204,9 @@ gui.settings.folder.theme=テーマフォルダー
 gui.settings.folder.log=ログフォルダー
 gui.addon.toggle.disable=無効にする
 gui.addon.toggle.enable=有効にする
+gui.settings.proxy=プロキシ
+gui.settings.proxy.mirror=鏡
+gui.settings.proxy.address=プロキシアドレス:
+gui.settings.proxy.address=プロキシアドレス:
+gui.settings.proxy.address=プロキシアドレス:
+gui.settings.proxy.state=プロキシを使う
diff --git a/src/main/resources/languages/launcher_ko.properties b/src/main/resources/languages/launcher_ko.properties
index 0586cd5a..2f206ddc 100644
--- a/src/main/resources/languages/launcher_ko.properties
+++ b/src/main/resources/languages/launcher_ko.properties
@@ -201,4 +201,8 @@ gui.settings.folder.main=구성 폴더
 gui.settings.folder.theme=테마 폴더
 gui.settings.folder.log=로그 폴더
 gui.addon.toggle.disable=장애를 입히다
-gui.addon.toggle.enable=할 수 있게 하다
\ No newline at end of file
+gui.addon.toggle.enable=할 수 있게 하다
+gui.settings.proxy=대리
+gui.settings.proxy.mirror=거울
+gui.settings.proxy.address=프록시 주소:
+gui.settings.proxy.state=프록시 사용
\ No newline at end of file
diff --git a/src/main/resources/languages/launcher_zh.properties b/src/main/resources/languages/launcher_zh.properties
index 3ab36ba5..4444533d 100644
--- a/src/main/resources/languages/launcher_zh.properties
+++ b/src/main/resources/languages/launcher_zh.properties
@@ -194,4 +194,8 @@ gui.settings.folder.main=设置文件夹
 gui.settings.folder.theme=主题文件夹
 gui.settings.folder.log=日志文件夹
 gui.addon.toggle.disable=禁用
-gui.addon.toggle.enable=启用
\ No newline at end of file
+gui.addon.toggle.enable=启用
+gui.settings.proxy=代理
+gui.settings.proxy.mirror=镜像源
+gui.settings.proxy.address=代理地址:
+gui.settings.proxy.state=使用代理
\ No newline at end of file