diff --git a/.github/workflows/nuget.yml b/.github/workflows/internal-ci.yml
similarity index 78%
rename from .github/workflows/nuget.yml
rename to .github/workflows/internal-ci.yml
index 0aa6aff..2451e50 100644
--- a/.github/workflows/nuget.yml
+++ b/.github/workflows/internal-ci.yml
@@ -1,42 +1,42 @@
-name: Build for NuGet
+# This is an internal workflow for KSPBuildTools and not intended to be used by other projects
+
+name: CI
 
 on:
   push:
     tags:
       - '*.*.*'
     branches:
-     - 'main'
-    paths:
-      - '**/*.csproj'
-      - '**/*.props'
-      - '**/*.targets'
-      - '.github/workflows/nuget.yml'
+      - 'main'
   pull_request:
-    paths:
-      - '**/*.csproj'
-      - '**/*.props'
-      - '**/*.targets'
-      - '.github/workflows/nuget.yml'
   workflow_dispatch:
 
 env:
-  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
-  DOTNET_NOLOGO: true
   NuGetDirectory: ${{ github.workspace}}/nuget
 
 jobs:
+  test-plugin:
+    uses: './.github/workflows/internal-test-plugin.yml'
+    
+  test-plugin-legacy:
+    uses: './.github/workflows/internal-test-plugin-legacy.yml'
+
   build:
+    env:
+      DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
+      DOTNET_NOLOGO: true
     runs-on: ubuntu-latest
+    needs: [ test-plugin, test-plugin-legacy ]
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # get full history, not shallow clone
-        
+
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 8.0.x
-          
+
       - name: Build
         run: dotnet build KSPBuildTools.csproj
 
@@ -55,7 +55,7 @@ jobs:
     environment:
       name: "NuGet"
       url: "https://www.nuget.org/packages/KSPBuildTools"
-    if: github.event_name == 'push'
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     steps:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
@@ -80,4 +80,4 @@ jobs:
 
       - name: Publish Package to Github
         run: |
-          dotnet nuget push --source "github" ${{ env.NuGetDirectory }}/*.nupkg
\ No newline at end of file
+          dotnet nuget push --source "github" ${{ env.NuGetDirectory }}/*.nupkg
diff --git a/.github/workflows/internal-test-plugin-legacy.yml b/.github/workflows/internal-test-plugin-legacy.yml
new file mode 100644
index 0000000..68a8192
--- /dev/null
+++ b/.github/workflows/internal-test-plugin-legacy.yml
@@ -0,0 +1,26 @@
+# This is an internal test for KSPBuildTools and not intended to be used by other projects
+name: Test Plugin Mod (Legacy)
+
+on:
+  workflow_call:
+
+env:
+  TESTDIR: tests/plugin-mod-legacy
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        
+      - uses: ./.github/actions/setup-ckan
+
+      - uses: ./.github/actions/compile
+        with:
+          solution-file-path: ${{ env.TESTDIR }}/PluginModLegacy.sln
+          ksp-zip-url: https://github.com/KSPModdingLibs/KSPLibs/raw/main/KSP-1.12.5.zip
+
+      - uses: ./.github/actions/assemble-release
+        with:
+          artifacts: ${{ env.TESTDIR }}/GameData
+          output-file-name: plugin-mod-legacy
diff --git a/.github/workflows/internal-test-plugin.yml b/.github/workflows/internal-test-plugin.yml
new file mode 100644
index 0000000..2058e10
--- /dev/null
+++ b/.github/workflows/internal-test-plugin.yml
@@ -0,0 +1,26 @@
+# This is an internal test for KSPBuildTools and not intended to be used by other projects
+name: Test Plugin Mod
+
+on:
+  workflow_call:
+
+env:
+  TESTDIR: tests/plugin-mod
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        
+      - uses: ./.github/actions/setup-ckan
+
+      - uses: ./.github/actions/compile
+        with:
+          solution-file-path: ${{ env.TESTDIR }}/plugin-mod.csproj
+          ksp-zip-url: https://github.com/KSPModdingLibs/KSPLibs/raw/main/KSP-1.12.5.zip
+
+      - uses: ./.github/actions/assemble-release
+        with:
+          artifacts: ${{ env.TESTDIR }}/GameData
+          output-file-name: plugin-mod
diff --git a/KSPBuildTools.csproj b/KSPBuildTools.csproj
index ba3a5da..4eb983e 100644
--- a/KSPBuildTools.csproj
+++ b/KSPBuildTools.csproj
@@ -32,4 +32,9 @@
     <None Include="KSPCommon.targets" Pack="True" PackagePath="build/KSPBuildTools.targets" />
     <None Include="README.md" Pack="True" PackagePath="/"/>
   </ItemGroup>
+
+  <ItemGroup>
+    <Compile Remove="$(MSBuildThisFileDirectory)tests/**" />
+    <None Remove="$(MSBuildThisFileDirectory)tests/**" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/tests/plugin-mod-legacy/.gitignore b/tests/plugin-mod-legacy/.gitignore
new file mode 100644
index 0000000..c29446b
--- /dev/null
+++ b/tests/plugin-mod-legacy/.gitignore
@@ -0,0 +1,4 @@
+packages
+obj
+bin
+GameData
\ No newline at end of file
diff --git a/tests/plugin-mod-legacy/PluginModLegacy.sln b/tests/plugin-mod-legacy/PluginModLegacy.sln
new file mode 100644
index 0000000..20a4cfd
--- /dev/null
+++ b/tests/plugin-mod-legacy/PluginModLegacy.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "plugin-mod-legacy", "PluginModLegacy\plugin-mod-legacy.csproj", "{F19C7AB4-50C2-4378-9673-CC039CA12E10}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F19C7AB4-50C2-4378-9673-CC039CA12E10}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F19C7AB4-50C2-4378-9673-CC039CA12E10}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F19C7AB4-50C2-4378-9673-CC039CA12E10}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F19C7AB4-50C2-4378-9673-CC039CA12E10}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal
diff --git a/tests/plugin-mod-legacy/PluginModLegacy/Properties/AssemblyInfo.cs b/tests/plugin-mod-legacy/PluginModLegacy/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..9bf32e5
--- /dev/null
+++ b/tests/plugin-mod-legacy/PluginModLegacy/Properties/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes.
+// Change them to the values specific to your project.
+[assembly: AssemblyTitle ("PluginModLegacy")]
+[assembly: AssemblyDescription ("Test mod using a legacy csproj")]
+
+// This supposedly helps avoid plugin depencency problems.
+[assembly: KSPAssembly("plugin-mod-legacy", 1, 2, 3)]
\ No newline at end of file
diff --git a/tests/plugin-mod-legacy/PluginModLegacy/packages.config b/tests/plugin-mod-legacy/PluginModLegacy/packages.config
new file mode 100644
index 0000000..20174bf
--- /dev/null
+++ b/tests/plugin-mod-legacy/PluginModLegacy/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Krafs.Publicizer" version="1.0.3" targetFramework="net48" developmentDependency="true" />
+</packages>
\ No newline at end of file
diff --git a/tests/plugin-mod-legacy/PluginModLegacy/plugin-mod-legacy.csproj b/tests/plugin-mod-legacy/PluginModLegacy/plugin-mod-legacy.csproj
new file mode 100644
index 0000000..76b0a7a
--- /dev/null
+++ b/tests/plugin-mod-legacy/PluginModLegacy/plugin-mod-legacy.csproj
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.props" Condition="Exists('$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{F19C7AB4-50C2-4378-9673-CC039CA12E10}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <RootNamespace>JSI</RootNamespace>
+    <AssemblyName>PluginModMono</AssemblyName>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <CodePage>65001</CodePage>
+    <TargetFrameworkProfile />
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>portable</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <Prefer32Bit>false</Prefer32Bit>
+    <DebugType>portable</DebugType>
+    <DebugSymbols>true</DebugSymbols>
+  </PropertyGroup>
+  <PropertyGroup>
+    <RunPostBuildEvent>Always</RunPostBuildEvent>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Profile|AnyCPU'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\Profile\</OutputPath>
+    <DefineConstants>ENABLE_PROFILER</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>portable</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup>
+    <RepoRootPath>$(MSBuildThisFileDirectory)../</RepoRootPath>
+    <BinariesOutputRelativePath>GameData/plugin-mod-legacy</BinariesOutputRelativePath>
+  </PropertyGroup>
+  <Import Project="$(MSBuildExtensionsPath)/$(MSBuildToolsVersion)\Microsoft.Common.props" />
+  <Import Project="$(MSBuildThisFileDirectory)../../../KSPCommon.targets" />
+  <Import Project="$(MSBuildBinPath)/Microsoft.CSharp.targets" />
+  <ItemGroup>
+    <Compile Include="Properties/AssemblyInfo.cs"/>
+  </ItemGroup>
+  <ItemGroup>
+    <Publicize Include="Assembly-CSharp" />
+  </ItemGroup>
+  <Target Name="MakeModDir" BeforeTargets="BeforeBuild">
+    <MakeDir Directories="$(RepoRootPath)GameData/plugin-mod-legacy" />
+  </Target>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.props')" Text="$([System.String]::Format('$(ErrorText)', '$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.props'))" />
+    <Error Condition="!Exists('$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.targets'))" />
+  </Target>
+  <Import Project="$(MSBuildThisFileDirectory)../packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.targets" Condition="Exists('$(MSBuildThisFileDirectory)packages/Krafs.Publicizer.1.0.3/build/Krafs.Publicizer.targets')" />
+</Project>
\ No newline at end of file
diff --git a/tests/plugin-mod/.gitignore b/tests/plugin-mod/.gitignore
new file mode 100644
index 0000000..4e4c3a8
--- /dev/null
+++ b/tests/plugin-mod/.gitignore
@@ -0,0 +1,3 @@
+obj
+bin
+GameData
\ No newline at end of file
diff --git a/tests/plugin-mod/plugin-mod.csproj b/tests/plugin-mod/plugin-mod.csproj
new file mode 100644
index 0000000..cf2b274
--- /dev/null
+++ b/tests/plugin-mod/plugin-mod.csproj
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <PackageReference Include="MinVer" Version="5.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <!-- Static Properties -->
+  <PropertyGroup>
+    <TargetFramework>net48</TargetFramework>
+    <LangVersion>7.3</LangVersion>
+    <IsPackable>false</IsPackable>
+    <PlatformTarget>x64</PlatformTarget>
+    <NoWarn>1701;1702;CS0649;CS1591;</NoWarn>
+    <AssemblyCopyright>2024 KSPModdingLibs Contributors</AssemblyCopyright>
+    <AssemblyName>PluginMod</AssemblyName>
+    <RepoRootPath>$(MSBuildThisFileDirectory)</RepoRootPath>
+    <BinariesOutputRelativePath>GameData/plugin-mod</BinariesOutputRelativePath>
+  </PropertyGroup>
+
+  <!-- DLL Dependencies-->
+  <ItemGroup>
+    <Reference Include="0Harmony, Culture=neutral, PublicKeyToken=null">
+      <HintPath>$(KSPRoot)/GameData/000_Harmony/0Harmony.dll</HintPath>
+      <CKANIdentifier>Harmony2</CKANIdentifier>
+      <CKANVersion>2.2.1.0</CKANVersion>
+      <Private>False</Private>
+    </Reference>
+  </ItemGroup>
+
+  <!-- Version Files -->
+  <ItemGroup>
+    <KSPVersionFile Include=".">
+      <Destination>$(RepoRootPath)$(BinariesOutputRelativePath)/plugin-mod.version</Destination>
+    </KSPVersionFile>
+  </ItemGroup>
+  
+  <PropertyGroup>
+    <GenerateKSPAssemblyAttribute>true</GenerateKSPAssemblyAttribute>
+    <GenerateKSPAssemblyDependencyAttributes>true</GenerateKSPAssemblyDependencyAttributes>
+  </PropertyGroup>
+  
+  <Target Name="MakeModDir" BeforeTargets="BeforeBuild">
+    <MakeDir Directories="$(RepoRootPath)GameData/plugin-mod" />
+  </Target>
+
+  <Import Project="$(MSBuildThisFileDirectory)../../KSPCommon.targets" />
+</Project>