diff --git a/.gitignore b/.gitignore
index 587ac90..7cd7b62 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@ obj/
 
 # Config with secrets — never commit
 EbayListingTool/appsettings.json
+EbayListingTool/appsettings.local.json
 
 # Rider / JetBrains
 .idea/
diff --git a/EbayListingTool/App.xaml.cs b/EbayListingTool/App.xaml.cs
index 97541c7..278bd37 100644
--- a/EbayListingTool/App.xaml.cs
+++ b/EbayListingTool/App.xaml.cs
@@ -22,7 +22,8 @@ public partial class App : Application
 
         Configuration = new ConfigurationBuilder()
             .SetBasePath(AppContext.BaseDirectory)
-            .AddJsonFile("appsettings.json", optional: false, reloadOnChange: false)
+            .AddJsonFile("appsettings.json",         optional: true,  reloadOnChange: false)
+            .AddJsonFile("appsettings.local.json",   optional: true,  reloadOnChange: false)
             .Build();
 
         base.OnStartup(e);