diff --git a/Directory.Build.props b/Directory.Build.props
index 3f2ff6b..16d297d 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -2,10 +2,11 @@
 
     <PropertyGroup>
 
-        <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
-        <ImplicitUsings>enable</ImplicitUsings>
-        <Nullable>enable</Nullable>
-        <TargetFramework>net9.0</TargetFramework>
+      <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
+      <ImplicitUsings>enable</ImplicitUsings>
+      <Nullable>enable</Nullable>
+      <TargetFramework>net9.0</TargetFramework>
+      <LangVersion>13</LangVersion>
 
     </PropertyGroup>
 
diff --git a/Directory.Packages.props b/Directory.Packages.props
index ca8b9bf..22956ca 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -10,7 +10,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageVersion>
     <!-- Microsoft -->
-    <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="9.0.2"/>
+    <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="9.0.2" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.9" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.9" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
diff --git a/README.md b/README.md
index 3f81d2c..75ca803 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,11 @@ The best way to handle templates and replace placeholders.
 
 ## NuGet Packages
 
-| StringTemplates Package                                         | NuGet                                                                                                                   |
-|-----------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|
-| [StringTemplates](https://www.nuget.org/packages/StringTemplates) | [![NuGet](http://img.shields.io/nuget/vpre/StringTemplates.svg?label=NuGet)](https://www.nuget.org/packages/StringTemplates/) |
+| StringTemplates Package                                                                       | NuGet                                                                                                                                                     |
+|-----------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|
+| [StringTemplates](https://www.nuget.org/packages/StringTemplates)                             | [![NuGet](http://img.shields.io/nuget/vpre/StringTemplates.svg?label=NuGet)](https://www.nuget.org/packages/StringTemplates/)                             |
+| [StringTemplates.Configuration](https://www.nuget.org/packages/StringTemplates.Configuration) | [![NuGet](http://img.shields.io/nuget/vpre/StringTemplates.Configuration.svg?label=NuGet)](https://www.nuget.org/packages/StringTemplates.Configuration/) |
+| [StringTemplates.MimeKit](https://www.nuget.org/packages/StringTemplates.MimeKit)             | [![NuGet](http://img.shields.io/nuget/vpre/StringTemplates.MimeKit.svg?label=NuGet)](https://www.nuget.org/packages/StringTemplates.MimeKit/)             |
 
 ## Documentation
 
diff --git a/StringTemplates.slnx b/StringTemplates.slnx
index e1c27ea..d2cf459 100644
--- a/StringTemplates.slnx
+++ b/StringTemplates.slnx
@@ -4,6 +4,7 @@
   </Folder>
   <Folder Name="/solution/">
     <File Path=".editorconfig" />
+    <File Path="build-core.sh" />
     <File Path="Directory.Build.props" />
     <File Path="Directory.Packages.props" />
   </Folder>
diff --git a/build-core.sh b/build-core.sh
new file mode 100644
index 0000000..4c7ac14
--- /dev/null
+++ b/build-core.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+
+cd ./src/StringTemplates
+dotnet clean
+dotnet build -c Release
+dotnet pack -c Release
+
+# To run:
+# chmod +x build-core.sh