diff --git a/build/common.targets b/build/build.targets
similarity index 68%
rename from build/common.targets
rename to build/build.targets
index 54e24c74..270fd95d 100644
--- a/build/common.targets
+++ b/build/build.targets
@@ -1,35 +1,8 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <!-- load dev settings -->
-  <Import Condition="$(OS) != 'Windows_NT' AND Exists('$(HOME)\stardewvalley.targets')" Project="$(HOME)\stardewvalley.targets" />
-  <Import Condition="$(OS) == 'Windows_NT' AND Exists('$(USERPROFILE)\stardewvalley.targets')" Project="$(USERPROFILE)\stardewvalley.targets" />
-
-  <!-- find game path -->
-  <PropertyGroup>
-    <!-- Linux paths -->
-    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/GOG Games/Stardew Valley/game</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/.local/share/Steam/steamapps/common/Stardew Valley</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/.steam/steam/steamapps/common/Stardew Valley</GamePath>
-    <!-- Mac paths -->
-    <GamePath Condition="!Exists('$(GamePath)')">/Applications/Stardew Valley.app/Contents/MacOS</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/Library/Application Support/Steam/steamapps/common/Stardew Valley/Contents/MacOS</GamePath>
-    <!-- Windows paths -->
-    <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\GalaxyClient\Games\Stardew Valley</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\GOG Galaxy\Games\Stardew Valley</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\Steam\steamapps\common\Stardew Valley</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)') AND '$(OS)' == 'Windows_NT'">$([MSBuild]::GetRegistryValueFromView('HKEY_LOCAL_MACHINE\SOFTWARE\GOG.com\Games\1453375253', 'PATH', null, RegistryView.Registry32))</GamePath>
-    <GamePath Condition="!Exists('$(GamePath)') AND '$(OS)' == 'Windows_NT'">$([MSBuild]::GetRegistryValueFromView('HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Steam App 413150', 'InstallLocation', null, RegistryView.Registry64, RegistryView.Registry32))</GamePath>
-  </PropertyGroup>
-
   <!-- add references-->
   <Choose>
     <When Condition="$(OS) == 'Windows_NT'">
-      <PropertyGroup>
-        <DefineConstants>$(DefineConstants);SMAPI_FOR_WINDOWS</DefineConstants>
-      </PropertyGroup>
       <ItemGroup>
-        <!-- WMI for environment info -->
-        <Reference Include="System.Management" />
-
         <!--XNA framework-->
         <Reference Include="Microsoft.Xna.Framework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553, processorArchitecture=x86">
           <Private>False</Private>
@@ -61,9 +34,6 @@
       </ItemGroup>
     </When>
     <Otherwise>
-      <PropertyGroup>
-        <DefineConstants>$(DefineConstants);SMAPI_FOR_UNIX</DefineConstants>
-      </PropertyGroup>
       <ItemGroup>
         <!-- MonoGame -->
         <Reference Include="MonoGame.Framework">
diff --git a/build/constants.targets b/build/constants.targets
new file mode 100644
index 00000000..3e10462a
--- /dev/null
+++ b/build/constants.targets
@@ -0,0 +1,25 @@
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <!-- load dev settings -->
+  <Import Condition="$(OS) != 'Windows_NT' AND Exists('$(HOME)\stardewvalley.targets')" Project="$(HOME)\stardewvalley.targets" />
+  <Import Condition="$(OS) == 'Windows_NT' AND Exists('$(USERPROFILE)\stardewvalley.targets')" Project="$(USERPROFILE)\stardewvalley.targets" />
+
+  <!-- find game path -->
+  <PropertyGroup>
+    <!-- Linux paths -->
+    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/GOG Games/Stardew Valley/game</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/.local/share/Steam/steamapps/common/Stardew Valley</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/.steam/steam/steamapps/common/Stardew Valley</GamePath>
+    <!-- Mac paths -->
+    <GamePath Condition="!Exists('$(GamePath)')">/Applications/Stardew Valley.app/Contents/MacOS</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)')">$(HOME)/Library/Application Support/Steam/steamapps/common/Stardew Valley/Contents/MacOS</GamePath>
+    <!-- Windows paths -->
+    <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\GalaxyClient\Games\Stardew Valley</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\GOG Galaxy\Games\Stardew Valley</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\Steam\steamapps\common\Stardew Valley</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)') AND '$(OS)' == 'Windows_NT'">$([MSBuild]::GetRegistryValueFromView('HKEY_LOCAL_MACHINE\SOFTWARE\GOG.com\Games\1453375253', 'PATH', null, RegistryView.Registry32))</GamePath>
+    <GamePath Condition="!Exists('$(GamePath)') AND '$(OS)' == 'Windows_NT'">$([MSBuild]::GetRegistryValueFromView('HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Steam App 413150', 'InstallLocation', null, RegistryView.Registry64, RegistryView.Registry32))</GamePath>
+
+    <!--compile constants -->
+    <DefineConstants Condition="$(OS) == 'Windows_NT'">$(DefineConstants);SMAPI_FOR_WINDOWS</DefineConstants>
+  </PropertyGroup>
+</Project>
diff --git a/src/SMAPI.Installer/StardewModdingAPI.Installer.csproj b/src/SMAPI.Installer/StardewModdingAPI.Installer.csproj
index 4f849b9b..dd349e09 100644
--- a/src/SMAPI.Installer/StardewModdingAPI.Installer.csproj
+++ b/src/SMAPI.Installer/StardewModdingAPI.Installer.csproj
@@ -64,6 +64,7 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\..\build\common.targets" />
+  <Import Project="..\..\build\constants.targets" />
+  <Import Project="..\..\build\build.targets" />
   <Import Project="..\..\build\prepare-install-package.targets" />
 </Project>
\ No newline at end of file
diff --git a/src/SMAPI.Internal/StardewModdingAPI.Internal.csproj b/src/SMAPI.Internal/StardewModdingAPI.Internal.csproj
index 6e7fa368..a87dcb0a 100644
--- a/src/SMAPI.Internal/StardewModdingAPI.Internal.csproj
+++ b/src/SMAPI.Internal/StardewModdingAPI.Internal.csproj
@@ -31,6 +31,8 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
+    <!-- WMI for environment info -->
+    <Reference Condition="'$(OS)' == 'Windows_NT'" Include="System.Management" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="..\..\build\GlobalAssemblyInfo.cs">
@@ -41,9 +43,8 @@
     <Compile Include="Models\ModSeachModel.cs" />
     <Compile Include="Platform.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="RewriteFacades\SpriteBatchMethods.cs" />
     <Compile Include="SemanticVersionImpl.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\..\build\common.targets" />
+  <Import Project="..\..\build\constants.targets" />
 </Project>
\ No newline at end of file
diff --git a/src/SMAPI.ModBuildConfig/StardewModdingAPI.ModBuildConfig.csproj b/src/SMAPI.ModBuildConfig/StardewModdingAPI.ModBuildConfig.csproj
index 02564409..c6d25c19 100644
--- a/src/SMAPI.ModBuildConfig/StardewModdingAPI.ModBuildConfig.csproj
+++ b/src/SMAPI.ModBuildConfig/StardewModdingAPI.ModBuildConfig.csproj
@@ -62,5 +62,6 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Import Project="..\..\build\constants.targets" />
   <Import Project="..\..\build\prepare-nuget-package.targets" />
 </Project>
\ No newline at end of file
diff --git a/src/SMAPI.Mods.ConsoleCommands/StardewModdingAPI.Mods.ConsoleCommands.csproj b/src/SMAPI.Mods.ConsoleCommands/StardewModdingAPI.Mods.ConsoleCommands.csproj
index d1f72c6c..15c1c9a8 100644
--- a/src/SMAPI.Mods.ConsoleCommands/StardewModdingAPI.Mods.ConsoleCommands.csproj
+++ b/src/SMAPI.Mods.ConsoleCommands/StardewModdingAPI.Mods.ConsoleCommands.csproj
@@ -94,5 +94,6 @@
     <None Include="packages.config" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\..\build\common.targets" />
+  <Import Project="..\..\build\constants.targets" />
+  <Import Project="..\..\build\build.targets" />
 </Project>
\ No newline at end of file
diff --git a/src/SMAPI.Tests/StardewModdingAPI.Tests.csproj b/src/SMAPI.Tests/StardewModdingAPI.Tests.csproj
index 0c793817..001b006c 100644
--- a/src/SMAPI.Tests/StardewModdingAPI.Tests.csproj
+++ b/src/SMAPI.Tests/StardewModdingAPI.Tests.csproj
@@ -78,7 +78,8 @@
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\..\build\common.targets" />
+  <Import Project="..\..\build\constants.targets" />
+  <Import Project="..\..\build\build.targets" />
   <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>
diff --git a/src/SMAPI.sln b/src/SMAPI.sln
index ff953751..282d8397 100644
--- a/src/SMAPI.sln
+++ b/src/SMAPI.sln
@@ -43,7 +43,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "docs", "docs", "{EB35A917-6
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "build", "build", "{09CF91E5-5BAB-4650-A200-E5EA9A633046}"
 	ProjectSection(SolutionItems) = preProject
-		..\build\common.targets = ..\build\common.targets
+		..\build\build.targets = ..\build\build.targets
+		..\build\constants.targets = ..\build\constants.targets
 		..\build\GlobalAssemblyInfo.cs = ..\build\GlobalAssemblyInfo.cs
 		..\build\prepare-install-package.targets = ..\build\prepare-install-package.targets
 		..\build\prepare-nuget-package.targets = ..\build\prepare-nuget-package.targets
diff --git a/src/SMAPI.Internal/RewriteFacades/SpriteBatchMethods.cs b/src/SMAPI/Framework/RewriteFacades/SpriteBatchMethods.cs
similarity index 94%
rename from src/SMAPI.Internal/RewriteFacades/SpriteBatchMethods.cs
rename to src/SMAPI/Framework/RewriteFacades/SpriteBatchMethods.cs
index 5e5d117e..5dd21b92 100644
--- a/src/SMAPI.Internal/RewriteFacades/SpriteBatchMethods.cs
+++ b/src/SMAPI/Framework/RewriteFacades/SpriteBatchMethods.cs
@@ -2,9 +2,10 @@ using System.Diagnostics.CodeAnalysis;
 using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 
-namespace StardewModdingAPI.Internal.RewriteFacades
+namespace StardewModdingAPI.Framework.RewriteFacades
 {
     /// <summary>Provides <see cref="SpriteBatch"/> method signatures that can be injected into mod code for compatibility between Linux/Mac or Windows.</summary>
+    /// <remarks>This is public to support SMAPI rewriting and should not be referenced directly by mods.</remarks>
     public class SpriteBatchMethods : SpriteBatch
     {
         /*********
diff --git a/src/SMAPI/Metadata/InstructionMetadata.cs b/src/SMAPI/Metadata/InstructionMetadata.cs
index c7abfbef..1063ae71 100644
--- a/src/SMAPI/Metadata/InstructionMetadata.cs
+++ b/src/SMAPI/Metadata/InstructionMetadata.cs
@@ -4,7 +4,7 @@ using StardewModdingAPI.Events;
 using StardewModdingAPI.Framework.ModLoading;
 using StardewModdingAPI.Framework.ModLoading.Finders;
 using StardewModdingAPI.Framework.ModLoading.Rewriters;
-using StardewModdingAPI.Internal.RewriteFacades;
+using StardewModdingAPI.Framework.RewriteFacades;
 using StardewValley;
 
 namespace StardewModdingAPI.Metadata
diff --git a/src/SMAPI/StardewModdingAPI.csproj b/src/SMAPI/StardewModdingAPI.csproj
index 31bfd6fd..ca6459fe 100644
--- a/src/SMAPI/StardewModdingAPI.csproj
+++ b/src/SMAPI/StardewModdingAPI.csproj
@@ -127,6 +127,7 @@
     <Compile Include="Framework\Models\MonitorColorScheme.cs" />
     <Compile Include="Framework\Reflection\InterfaceProxyBuilder.cs" />
     <Compile Include="Framework\Reflection\InterfaceProxyFactory.cs" />
+    <Compile Include="Framework\RewriteFacades\SpriteBatchMethods.cs" />
     <Compile Include="Framework\Serialisation\SmapiConverters\ManifestContentPackForConverter.cs" />
     <Compile Include="Framework\Serialisation\SmapiConverters\ManifestDependencyArrayConverter.cs" />
     <Compile Include="Framework\Serialisation\SmapiConverters\SemanticVersionConverter.cs" />
@@ -313,5 +314,6 @@
     <Analyzer Include="..\SMAPI.ModBuildConfig.Analyzer\bin\netstandard1.3\StardewModdingAPI.ModBuildConfig.Analyzer.dll" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <Import Project="..\..\build\common.targets" />
+  <Import Project="..\..\build\constants.targets" />
+  <Import Project="..\..\build\build.targets" />
 </Project>
\ No newline at end of file