diff --git a/app/src/main/java/io/xpipe/app/prefs/SyncCategory.java b/app/src/main/java/io/xpipe/app/prefs/SyncCategory.java
index da3bf2c0..9c62ecac 100644
--- a/app/src/main/java/io/xpipe/app/prefs/SyncCategory.java
+++ b/app/src/main/java/io/xpipe/app/prefs/SyncCategory.java
@@ -3,9 +3,17 @@ package io.xpipe.app.prefs;
 import io.xpipe.app.comp.base.ButtonComp;
 import io.xpipe.app.core.AppI18n;
 import io.xpipe.app.fxcomps.Comp;
+import io.xpipe.app.fxcomps.impl.StackComp;
 import io.xpipe.app.storage.DataStorage;
+import io.xpipe.app.storage.DataStorageSyncHandler;
 import io.xpipe.app.util.DesktopHelper;
 import io.xpipe.app.util.OptionsBuilder;
+import io.xpipe.app.util.ThreadHelper;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import org.kordamp.ikonli.javafx.FontIcon;
+
+import java.util.List;
 
 public class SyncCategory extends AppPrefsCategory {
 
@@ -16,6 +24,14 @@ public class SyncCategory extends AppPrefsCategory {
 
     public Comp<?> create() {
         var prefs = AppPrefs.get();
+        var terminalTest = new StackComp(
+                List.of(new ButtonComp(AppI18n.observable("test"), new FontIcon("mdi2p-play"), () -> {
+                    ThreadHelper.runAsync(() -> {
+                        DataStorageSyncHandler.getInstance().validateConnection();
+                    });
+                }).padding(new Insets(6, 10, 6, 6))))
+                .padding(new Insets(10, 0, 0, 0))
+                .apply(struc -> struc.get().setAlignment(Pos.CENTER_LEFT));
         var builder = new OptionsBuilder();
         builder.addTitle("sync")
                 .sub(new OptionsBuilder()
@@ -23,8 +39,10 @@ public class SyncCategory extends AppPrefsCategory {
                         .description("enableGitStorageDescription")
                         .addToggle(prefs.enableGitStorage)
                         .nameAndDescription("storageGitRemote")
-                        .addString(prefs.storageGitRemote, true)
+                        .addString(prefs.storageGitRemote)
                         .disable(prefs.enableGitStorage.not())
+                        .addComp(terminalTest)
+                        .disable(prefs.storageGitRemote.isNull().and(prefs.enableGitStorage))
                         .addComp(prefs.getCustomComp("gitVaultIdentityStrategy"))
                         .nameAndDescription("openDataDir")
                         .addComp(new ButtonComp(AppI18n.observable("openDataDirButton"), () -> {
diff --git a/app/src/main/java/io/xpipe/app/storage/DataStorageSyncHandler.java b/app/src/main/java/io/xpipe/app/storage/DataStorageSyncHandler.java
index 5ea25648..bf8eaac5 100644
--- a/app/src/main/java/io/xpipe/app/storage/DataStorageSyncHandler.java
+++ b/app/src/main/java/io/xpipe/app/storage/DataStorageSyncHandler.java
@@ -10,6 +10,8 @@ public interface DataStorageSyncHandler {
         return (DataStorageSyncHandler) ProcessControlProvider.get().getGitStorageHandler();
     }
 
+    void validateConnection();
+
     boolean supportsSync();
 
     void init();
diff --git a/app/src/main/java/io/xpipe/app/update/AppInstaller.java b/app/src/main/java/io/xpipe/app/update/AppInstaller.java
index 6e521cfa..ae809640 100644
--- a/app/src/main/java/io/xpipe/app/update/AppInstaller.java
+++ b/app/src/main/java/io/xpipe/app/update/AppInstaller.java
@@ -151,7 +151,7 @@ public class AppInstaller {
                 var name = AppProperties.get().isStaging() ? "xpipe-ptb" : "xpipe";
                 var command = String.format(
                         """
-                                             function exec {
+                                             exec() {
                                                  echo "Installing downloaded .deb installer ..."
                                                  echo "+ sudo apt install \\"%s\\""
                                                  DEBIAN_FRONTEND=noninteractive sudo apt-get install -qy "%s" || return 1
@@ -191,7 +191,7 @@ public class AppInstaller {
                 var name = AppProperties.get().isStaging() ? "xpipe-ptb" : "xpipe";
                 var command = String.format(
                         """
-                                             function exec {
+                                             exec() {
                                                  echo "Installing downloaded .rpm installer ..."
                                                  echo "+ sudo rpm -U -v --force \\"%s\\""
                                                  sudo rpm -U -v --force "%s" || return 1
@@ -231,7 +231,7 @@ public class AppInstaller {
                 var name = AppProperties.get().isStaging() ? "xpipe-ptb" : "xpipe";
                 var command = String.format(
                         """
-                                           function exec {
+                                           exec() {
                                                echo "Installing downloaded .pkg installer ..."
                                                echo "+ sudo installer -verboseR -allowUntrusted -pkg \\"%s\\" -target /"
                                                sudo installer -verboseR -allowUntrusted -pkg "%s" -target / || return 1