diff --git a/build/repo.targets b/build/repo.targets
index 7dfd281b16..f439b699ae 100644
--- a/build/repo.targets
+++ b/build/repo.targets
@@ -2,13 +2,17 @@
   <Import Project="$(RepositoryRoot)\build\dependencies.props" />
 
   <PropertyGroup>
-      <_SdkVersion>$([System.IO.Path]::GetFileName($([System.IO.Path]::GetDirectoryName('$(MSBuildExtensionsPath)'))))</_SdkVersion>
+      <ComposeSdk Condition="$(SITE_EXTENSION_SDK_VERSION) == ''">True</ComposeSdk>
+      <_SdkVersion>$(SITE_EXTENSION_SDK_VERSION)</_SdkVersion>
+      <_SdkVersion Condition="'$(_SdkVersion)' == ''">$([System.IO.Path]::GetFileName($([System.IO.Path]::GetDirectoryName('$(MSBuildExtensionsPath)'))))</_SdkVersion>
+      <_SdkFeed>$(SITE_EXTENSION_SDK_FEED)</_SdkFeed>
+      <_SdkFeed Condition="'$(_SdkFeed)' == ''">$(DefaultDotNetAssetFeed)</_SdkFeed>
       <TestDotNetPath>$(RepositoryRoot).test-dotnet\</TestDotNetPath>
       <AppsArtifactDirectory>$(RepositoryRoot)artifacts\apps</AppsArtifactDirectory>
       <SiteExtensionWorkingDirectory>$(TestDotNetPath)extension\</SiteExtensionWorkingDirectory>
       <SiteExtensionOutputDirectory>$(RepositoryRoot)artifacts\build</SiteExtensionOutputDirectory>
       <TestProjectDirectory>$(RepositoryRoot)\test\Microsoft.AspNetCore.AzureAppServices.FunctionalTests\</TestProjectDirectory>
-      <SiteExtensionFeed Condition="$(SiteExtensionFeed) == ''">https://dotnet.myget.org/F/aspnetcore-ci-dev/</SiteExtensionFeed>
+      <SiteExtensionFeed Condition="$(SiteExtensionFeed) == ''">https://dotnet.myget.org/F/aspnetcore-dev/</SiteExtensionFeed>
   </PropertyGroup>
 
   <Target Name="_AddTestRuntimes">
@@ -22,10 +26,14 @@
     <RemoveDir Directories="$(SiteExtensionWorkingDirectory)" Condition="Exists($(SiteExtensionWorkingDirectory))" />
   </Target>
 
-  <Target Name="_AddSiteExtensionRuntime">
-
+  <Target Name="_AddSiteExtensionSdk">
+    <ItemGroup>
+      <DotNetCoreSdk Include="$(_SdkVersion)" Feed="$(_SdkFeed)" InstallDir="$(SiteExtensionWorkingDirectory)" Arch="x86" />
+    </ItemGroup>
+  </Target>
+
+  <Target Name="_AddSiteExtensionRuntime">
     <ItemGroup>
-      <DotNetCoreSdk Include="$(_SdkVersion)" InstallDir="$(SiteExtensionWorkingDirectory)" Arch="x86" />
       <DotNetCoreRuntime
         Include="$(MicrosoftNETCoreApp21PackageVersion)"
         InstallDir="$(SiteExtensionWorkingDirectory)"
@@ -35,7 +43,7 @@
     </ItemGroup>
   </Target>
 
-  <Target Name="BuildSiteExtension" DependsOnTargets="_CleanSiteExtension;_AddSiteExtensionRuntime;InstallDotNet">
+  <Target Name="ComposeSiteExtensions" Condition="'$(ComposeSdk)' == 'True'" DependsOnTargets="_AddSiteExtensionSdk;_AddSiteExtensionRuntime;InstallDotNet">
     <ItemGroup>
       <RuntimeArchiveItems Include="$(RuntimeArchives)" />
       <DotNetCacheArchiveItems Include="$(DotNetCacheArchives)" />
@@ -47,6 +55,11 @@
         Include="$([System.IO.Directory]::GetDirectories('$(SiteExtensionWorkingDirectory)shared\Microsoft.NETCore.App\'))"
         Exclude="$(SiteExtensionWorkingDirectory)shared\Microsoft.NETCore.App\$(MicrosoftNETCoreApp21PackageVersion)" />
 
+      <_CleanupFiles
+        Condition="Exists('$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.App\')"
+        Include="$([System.IO.Directory]::GetDirectories('$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.App\'))"
+        Exclude="$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.App\$(PackageVersion)" />
+
       <_CleanupFiles
         Include="$([System.IO.Directory]::GetDirectories('$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.All\'))"
         Exclude="$(SiteExtensionWorkingDirectory)shared\Microsoft.AspNetCore.All\$(PackageVersion)" />
@@ -63,14 +76,15 @@
     <Message Text="Removing %(_CleanupFiles.Identity)" Importance="High" />
     <RemoveDir Directories="@(_CleanupFiles)" />
 
-    <!-- Workaround for nuget filtering out .nupkg files by default -->
-    <Copy SourceFiles="$(ArtifactDependencyLocation)\%(BundledTemplate.Identity).%(Version).nupkg" DestinationFiles="$(SiteExtensionWorkingDirectory)\sdk\$(_SdkVersion)\Templates\%(BundledTemplate.Identity).%(Version).nupkg_" />
-    <Copy SourceFiles="$(ArtifactDependencyLocation)\nuGetPackagesArchive-$(PackageVersion).lzma" DestinationFiles="$(SiteExtensionWorkingDirectory)\sdk\$(_SdkVersion)\nuGetPackagesArchive.lzma" />
-
     <UnzipArchive File="$(ArtifactDependencyLocation)\aspnetcore-runtime-internal-$(PackageVersion)-win-x86.zip" Destination="$(SiteExtensionWorkingDirectory)" Overwrite="true" />
     <UnzipArchive File="%(RuntimeArchiveItems.Identity)" Destination="$(SiteExtensionWorkingDirectory)" Condition="'$(RuntimeArchives)' != ''" Overwrite="true" />
     <UnzipArchive File="%(DotNetCacheArchiveItems.Identity)" Destination="$(SiteExtensionWorkingDirectory)DotNetCache" Condition="'$(DotNetCacheArchives)' != ''" Overwrite="true" />
 
+  </Target>
+
+  <Target Name="BuildSiteExtension" DependsOnTargets="_CleanSiteExtension;ComposeSiteExtensions;_AddSiteExtensionSdk;InstallDotNet">
+    <!-- Strip LZMA from sdk -->
+    <Delete Files="$(SiteExtensionWorkingDirectory)\sdk\$(_SdkVersion)\nuGetPackagesArchive.lzma" />
     <MSBuild Projects="%(SiteExtensions.Identity)"
       Targets="Restore"
       Properties="BuildNumber=$(BuildNumber)" />
diff --git a/extensions/Directory.Build.props b/extensions/Directory.Build.props
new file mode 100644
index 0000000000..33da9f03c1
--- /dev/null
+++ b/extensions/Directory.Build.props
@@ -0,0 +1,17 @@
+<Project>
+  <Import Project="..\Directory.Build.props" />
+  <PropertyGroup>
+    <TargetFramework>net461</TargetFramework>
+    <GenerateDocumentationFile>false</GenerateDocumentationFile>
+    <PackageType>AzureSiteExtension</PackageType>
+    <NoPackageAnalysis>true</NoPackageAnalysis>
+    <IncludeBuildOutput>false</IncludeBuildOutput>
+    <IncludeSymbols>false</IncludeSymbols>
+    <IncludeSource>false</IncludeSource>
+    <ContentTargetFolders>content</ContentTargetFolders>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Internal.AspNetCore.Sdk" PrivateAssets="All" Version="$(InternalAspNetCoreSdkPackageVersion)" />
+  </ItemGroup>
+
+</Project>
diff --git a/extensions/Microsoft.AspNetCore.AzureAppServices.SiteExtension/Microsoft.AspNetCore.AzureAppServices.SiteExtension.csproj b/extensions/Microsoft.AspNetCore.AzureAppServices.SiteExtension/Microsoft.AspNetCore.AzureAppServices.SiteExtension.csproj
index 0d2980dc00..57e70de196 100644
--- a/extensions/Microsoft.AspNetCore.AzureAppServices.SiteExtension/Microsoft.AspNetCore.AzureAppServices.SiteExtension.csproj
+++ b/extensions/Microsoft.AspNetCore.AzureAppServices.SiteExtension/Microsoft.AspNetCore.AzureAppServices.SiteExtension.csproj
@@ -6,8 +6,6 @@
     <TargetFramework>net461</TargetFramework>
     <GenerateDocumentationFile>false</GenerateDocumentationFile>
     <PackageTags>aspnet;logging;aspnetcore;AzureSiteExtension;keyvault;configuration;dataprotection</PackageTags>
-    <PackageType>AzureSiteExtension</PackageType>
-    <IncludeBuildOutput>false</IncludeBuildOutput>
     <ContentTargetFolders>content</ContentTargetFolders>
     <HostingStartupRuntimeFrameworkVersion>$(MicrosoftNETCoreApp21PackageVersion)</HostingStartupRuntimeFrameworkVersion>
   </PropertyGroup>
diff --git a/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/Microsoft.AspNetCore.Runtime.SiteExtension.csproj b/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/Microsoft.AspNetCore.Runtime.SiteExtension.csproj
index e95ba73830..2e52e98955 100644
--- a/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/Microsoft.AspNetCore.Runtime.SiteExtension.csproj
+++ b/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/Microsoft.AspNetCore.Runtime.SiteExtension.csproj
@@ -2,20 +2,9 @@
 
   <PropertyGroup>
     <Title>ASP.NET Core Runtime Extensions</Title>
-    <TargetFramework>net461</TargetFramework>
-    <GenerateDocumentationFile>false</GenerateDocumentationFile>
+    <Description>This site extension installs Microsoft.AspNetCore.All, Microsoft.AspNetCore.App and Microsoft.NetCore.App shared runtimes.</Description>
     <PackageTags>aspnetcore;AzureSiteExtension</PackageTags>
-    <PackageType>AzureSiteExtension</PackageType>
-    <NoPackageAnalysis>true</NoPackageAnalysis>
-    <IncludeBuildOutput>false</IncludeBuildOutput>
-    <IncludeSymbols>false</IncludeSymbols>
-    <IncludeSource>false</IncludeSource>
-    <ContentTargetFolders>content</ContentTargetFolders>
     <PackageId>AspNetCoreRuntime</PackageId>
-    <!-- These need to be set manually because this is not marked as a shipping (to nuget.org) package. https://github.com/aspnet/AzureIntegration/issues/38 -->
-    <PackageLicenseUrl>https://github.com/aspnet/AzureIntegration/blob/rel/2.0.0-preview1/LICENSE.txt</PackageLicenseUrl>
-    <PackageIconUrl>https://go.microsoft.com/fwlink/?LinkID=288859</PackageIconUrl>
-    <PackageProjectUrl>https://www.asp.net/</PackageProjectUrl>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/applicationHost.xdt b/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/applicationHost.xdt
index 463eb907ad..a1d7b34a90 100644
--- a/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/applicationHost.xdt
+++ b/extensions/Microsoft.AspNetCore.Runtime.SiteExtension/applicationHost.xdt
@@ -8,7 +8,7 @@
       <runtime xdt:Transform="InsertIfMissing" >
         <environmentVariables xdt:Transform="InsertIfMissing">
           <add name="PATH" value="%XDT_EXTENSIONPATH%;%USERPROFILE%\.dotnet\tools;%PATH%" xdt:Locator="Match(name)" xdt:Transform="InsertIfMissing"  />
-          <add name="DOTNET_SKIP_FIRST_TIME_EXPERIENCE" value="0" xdt:Locator="Match(name)" xdt:Transform="InsertIfMissing"  />
+          <add name="DOTNET_SKIP_FIRST_TIME_EXPERIENCE" value="1" xdt:Locator="Match(name)" xdt:Transform="InsertIfMissing"  />
         </environmentVariables>
       </runtime>
     </system.webServer>