initial push

Data/DesignTimeConfiguration.cs

@@ -0,0 +1,22 @@
+using Microsoft.Extensions.Configuration;
+
+namespace Example.Data;
+
+internal static class DesignTimeConfiguration
+{
+    public static IConfiguration Create(bool includeDevelopmentSettings)
+    {
+        var builder = new ConfigurationBuilder()
+            .SetBasePath(Directory.GetCurrentDirectory())
+            .AddJsonFile("appsettings.json", optional: false, reloadOnChange: false);
+
+        if (includeDevelopmentSettings)
+        {
+            builder.AddJsonFile("appsettings.Development.json", optional: false, reloadOnChange: false);
+        }
+
+        return builder
+            .AddEnvironmentVariables()
+            .Build();
+    }
+}