diff --git a/CredentialManager/design_time_temp.db b/CredentialManager/design_time_temp.db
deleted file mode 100644
index 02bade7..0000000
Binary files a/CredentialManager/design_time_temp.db and /dev/null differ
diff --git a/Data_Coupler/Program.cs b/Data_Coupler/Program.cs
index efb4e83..fba3fcc 100644
--- a/Data_Coupler/Program.cs
+++ b/Data_Coupler/Program.cs
@@ -23,11 +23,39 @@ builder.Services.AddServerSideBlazor();
 builder.Services.AddWindowsService();
 builder.Services.AddHostedService<BackgroundServices>();
 
-// Add CredentialManager services
-var contentRoot = builder.Environment.ContentRootPath;
-var dataPath = Path.Combine(contentRoot, "wwwroot", "data");
-Directory.CreateDirectory(dataPath); // Assicurati che la directory esista
-var dbPath = Path.Combine(dataPath, "credentials.db");
+#region Database Directory Path management
+
+string dbPath = string.Empty;
+
+if (OperatingSystem.IsWindows())
+{
+    dbPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), "Data_Coupler", "credentials.db");
+}
+else if (OperatingSystem.IsLinux())
+{
+    dbPath = "/var/lib/Data_Coupler/credentials.db";
+}
+else if (OperatingSystem.IsMacOS())
+{
+    dbPath = "/Library/Application Support/Data_Coupler/credentials.db";
+}
+
+var dbDirectory = Path.GetDirectoryName(dbPath);
+if (!Directory.Exists(dbDirectory))
+{
+    Directory.CreateDirectory(dbDirectory!);
+}
+
+#endregion
+
+#region OLD DB PATH
+// // Add CredentialManager services
+// var contentRoot = builder.Environment.ContentRootPath;
+// var dataPath = Path.Combine(contentRoot, "wwwroot", "data");
+// Directory.CreateDirectory(dataPath); // Assicurati che la directory esista
+// var dbPath = Path.Combine(dataPath, "credentials.db");
+#endregion
+
 builder.Services.AddDataConnectionCredentialManagement($"Data Source={dbPath}");
 
 // Register IHttpClientFactory
diff --git a/CredentialManager/Test/Program.cs b/TestCredentialDatabaseName/Program.cs
similarity index 100%
rename from CredentialManager/Test/Program.cs
rename to TestCredentialDatabaseName/Program.cs
diff --git a/CredentialManager/CLI/CredentialManagerCLI.cs b/TestCredentialDatabaseName/TestCredentialDatabaseName.csproj
similarity index 100%
rename from CredentialManager/CLI/CredentialManagerCLI.cs
rename to TestCredentialDatabaseName/TestCredentialDatabaseName.csproj
diff --git a/CredentialManager/CLI/README.md b/TestSourceDatabaseName/Program.cs
similarity index 100%
rename from CredentialManager/CLI/README.md
rename to TestSourceDatabaseName/Program.cs
diff --git a/TestSourceDatabaseName/TestSourceDatabaseName.csproj b/TestSourceDatabaseName/TestSourceDatabaseName.csproj
new file mode 100644
index 0000000..e69de29