diff --git a/dotnet8.0.spec b/dotnet8.0.spec
index d6fecf3..ce48160 100644
--- a/dotnet8.0.spec
+++ b/dotnet8.0.spec
@@ -68,9 +68,9 @@ Source0:        %{tarball_name}.tar.xz
 # Generated via ./build-arm64-bootstrap-tarball
 Source1:        dotnet-arm64-prebuilts-2023-05-17.tar.gz
 # Generated manually, same pattern as the arm64 tarball
-#Source2:        dotnet-ppc64le-prebuilts-2022-10-21.tar.gz
+Source2:        dotnet-ppc64le-prebuilts-2023-05-18.tar.gz
 # Generated manually, same pattern as the arm64 tarball
-#Source3:        dotnet-s390x-prebuilts-2022-10-12.tar.gz
+Source3:        dotnet-s390x-prebuilts-2023-05-25.tar.gz
 %else
 # For non-releases, the source is generated on a Fedora box via:
 # ./build-dotnet-tarball %%{upstream_tag} or commit
@@ -87,10 +87,13 @@ Source21:       dotnet.sh.in
 
 # Disable apphost; there's no net6.0 apphost for ppc64le
 Patch1:        roslyn-analyzers-ppc64le-apphost.patch
+# https://github.com/dotnet/source-build/discussions/3481
+Patch2:        nuget-client-use-net8.0.patch
+Patch3:        fsharp-use-net8.0.patch
+Patch4:        vstest-intent-net8.0.patch
 
 %if 0%{?fedora} || 0%{?rhel} >= 8
-#ExclusiveArch:  aarch64 ppc64le s390x x86_64
-ExclusiveArch:  aarch64 x86_64
+ExclusiveArch:  aarch64 ppc64le s390x x86_64
 %else
 ExclusiveArch:  x86_64
 %endif
@@ -114,7 +117,12 @@ BuildRequires:  libicu-devel
 %if ! %{use_bundled_libunwind}
 BuildRequires:  libunwind-devel
 %endif
+%ifnarch s390x
 BuildRequires:  lld
+%else
+# lld is not supported/available/usable on s390x
+BuildRequires:  binutils
+%endif
 # If the build ever crashes, then having lldb installed might help the
 # runtime generate a backtrace for the crash
 BuildRequires:  lldb
@@ -394,15 +402,15 @@ boot_sdk_version=$(ls -1 .dotnet/sdk/)
 sed -i -E 's|"dotnet": "[^"]+"|"dotnet" : "'$boot_sdk_version'"|' global.json
 
 %ifarch ppc64le s390x
-ilasm_version=$(ls packages/prebuilt| grep -i ilasm | tr 'A-Z' 'a-z' | sed -E 's|runtime.linux-'%{runtime_arch}'.microsoft.netcore.ilasm.||' | sed -E 's|.nupkg$||')
+ilasm_version=$(ls prereqs/packages/prebuilt| grep -i ilasm | tr 'A-Z' 'a-z' | sed -E 's|runtime.linux-'%{runtime_arch}'.microsoft.netcore.ilasm.||' | sed -E 's|.nupkg$||')
 echo $ilasm_version
 
 mkdir -p packages-customized-local
 pushd packages-customized-local
-tar xf ../packages/archive/Private.SourceBuilt.Artifacts.*.tar.gz
+tar xf ../prereqs/packages/archive/Private.SourceBuilt.Artifacts.*.tar.gz
 sed -i -E 's|<MicrosoftNETCoreILAsmVersion>[^<]+</MicrosoftNETCoreILAsmVersion>|<MicrosoftNETCoreILAsmVersion>'$ilasm_version'</MicrosoftNETCoreILAsmVersion>|' PackageVersions.props
 sed -i -E 's|<MicrosoftNETCoreILDAsmVersion>[^<]+</MicrosoftNETCoreILDAsmVersion>|<MicrosoftNETCoreILDAsmVersion>'$ilasm_version'</MicrosoftNETCoreILDAsmVersion>|' PackageVersions.props
-tar czf ../packages/archive/Private.SourceBuilt.Artifacts.*.tar.gz *
+tar czf ../prereqs/packages/archive/Private.SourceBuilt.Artifacts.*.tar.gz *
 popd
 
 %endif
diff --git a/fsharp-use-net8.0.patch b/fsharp-use-net8.0.patch
new file mode 100644
index 0000000..c99b005
--- /dev/null
+++ b/fsharp-use-net8.0.patch
@@ -0,0 +1,11 @@
+--- a/src/fsharp/src/Microsoft.FSharp.Compiler/Microsoft.FSharp.Compiler.fsproj
++++ b/src/fsharp/src/Microsoft.FSharp.Compiler/Microsoft.FSharp.Compiler.fsproj
+@@ -3,7 +3,7 @@
+   <PropertyGroup>
+     <PreRelease>true</PreRelease>
+     <OutputType>Exe</OutputType>
+-    <TargetFramework>net7.0</TargetFramework>
++    <TargetFramework>net8.0</TargetFramework>
+     <NuspecFile>Microsoft.FSharp.Compiler.nuspec</NuspecFile>
+     <IsPackable>true</IsPackable>
+     <PackageDescription>.NET Core compatible version of the F# compiler fsc.exe.</PackageDescription>
diff --git a/nuget-client-use-net8.0.patch b/nuget-client-use-net8.0.patch
new file mode 100644
index 0000000..63a7ab5
--- /dev/null
+++ b/nuget-client-use-net8.0.patch
@@ -0,0 +1,55 @@
+From https://github.com/dotnet/source-build/discussions/3481
+
+--- a/src/nuget-client/build/common.project.props
++++ a/src/nuget-client/build/common.project.props
+@@ -14,7 +14,7 @@
+     <NETFXTargetFrameworkVersion>v4.7.2</NETFXTargetFrameworkVersion>
+     <NETFXTargetFramework>net472</NETFXTargetFramework>
+     <NETCoreTargetFramework>netcoreapp3.1</NETCoreTargetFramework>
+-    <NETCoreTargetFramework Condition="'$(DotNetBuildFromSource)' == 'true'">net7.0</NETCoreTargetFramework>
++    <NETCoreTargetFramework Condition="'$(DotNetBuildFromSource)' == 'true'">net8.0</NETCoreTargetFramework>
+     <NETCoreTestTargetFrameworks>net7.0;net8.0</NETCoreTestTargetFrameworks>
+     <NetStandardVersion>netstandard2.0</NetStandardVersion>
+     <TargetFrameworksExe>$(NETFXTargetFramework);$(NETCoreTargetFramework)</TargetFrameworksExe>
+@@ -24,7 +24,7 @@
+     <TargetFrameworksExeForSigning Condition="'$(DotNetBuildFromSource)' == 'true'">$(TargetFrameworksExe);net7.0</TargetFrameworksExeForSigning>
+     <MinimalTargetFrameworksExeSigning>$(NETFXTargetFramework);netcoreapp5.0</MinimalTargetFrameworksExeSigning>
+     <MinimalTargetFrameworksExeSigning Condition=" '$(IsXPlat)' == 'true' ">netcoreapp5.0</MinimalTargetFrameworksExeSigning>
+-    <MinimalTargetFrameworksExeSigning Condition="'$(DotNetBuildFromSource)' == 'true'">net7.0</MinimalTargetFrameworksExeSigning>
++    <MinimalTargetFrameworksExeSigning Condition="'$(DotNetBuildFromSource)' == 'true'">net8.0</MinimalTargetFrameworksExeSigning>
+     <TargetFrameworksLibrary>$(NETFXTargetFramework);$(NetStandardVersion)</TargetFrameworksLibrary>
+     <TargetFrameworksLibrary Condition="'$(DotNetBuildFromSource)' == 'true'">$(NETCoreTargetFramework);$(NetStandardVersion)</TargetFrameworksLibrary>
+     <TargetFrameworksLibraryForSigning>$(TargetFrameworksLibrary);netcoreapp5.0</TargetFrameworksLibraryForSigning>
+--- a/src/nuget-client/build/common.targets
++++ b/src/nuget-client/build/common.targets
+@@ -6,7 +6,7 @@
+     <IsDesktop>true</IsDesktop>
+   </PropertyGroup>
+ 
+-  <PropertyGroup Condition=" $(TargetFramework.StartsWith('netcoreapp')) OR $(TargetFramework.StartsWith('netstandard')) OR $(TargetFramework.StartsWith('net6')) OR $(TargetFramework.StartsWith('net7')) ">
++  <PropertyGroup Condition=" $(TargetFramework.StartsWith('netcoreapp')) OR $(TargetFramework.StartsWith('netstandard')) OR $(TargetFramework.StartsWith('net6')) OR $(TargetFramework.StartsWith('net7')) OR $(TargetFramework.StartsWith('net8')) ">
+     <DefineConstants>$(DefineConstants);IS_CORECLR</DefineConstants>
+     <IsCore>true</IsCore>
+   </PropertyGroup>
+--- a/src/nuget-client/src/NuGet.Core/NuGet.Configuration/NuGet.Configuration.csproj
++++ a/src/nuget-client/src/NuGet.Core/NuGet.Configuration/NuGet.Configuration.csproj
+@@ -26,7 +26,7 @@
+     <Reference Include="System.Xml.Linq" />
+   </ItemGroup>
+ 
+-  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' ">
++  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' or '$(TargetFramework)' == 'net8.0' ">
+     <PackageReference Include="System.Security.Cryptography.ProtectedData" />
+   </ItemGroup>
+ 
+--- a/src/nuget-client/src/NuGet.Core/NuGet.PackageManagement/NuGet.PackageManagement.csproj
++++ b/src/nuget-client/src/NuGet.Core/NuGet.PackageManagement/NuGet.PackageManagement.csproj
+@@ -32,7 +32,7 @@
+     <Reference Include="System.Net.Http" />
+   </ItemGroup>
+ 
+-  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' ">
++  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' or '$(TargetFramework)' == 'net8.0' ">
+     <PackageReference Include="System.ComponentModel.Composition" />
+   </ItemGroup>
+ 
diff --git a/vstest-intent-net8.0.patch b/vstest-intent-net8.0.patch
new file mode 100644
index 0000000..6a51807
--- /dev/null
+++ b/vstest-intent-net8.0.patch
@@ -0,0 +1,13 @@
+diff --git a/src/vstest/test/Intent/Intent.csproj b/src/vstest/test/Intent/Intent.csproj
+index bb711c9256..6d0b199a9b 100644
+--- a/src/vstest/test/Intent/Intent.csproj
++++ b/src/vstest/test/Intent/Intent.csproj
+@@ -2,7 +2,7 @@
+ 
+   <PropertyGroup>
+     <OutputType>Exe</OutputType>
+-    <TargetFramework>net6.0</TargetFramework>
++    <TargetFramework>net8.0</TargetFramework>
+     <ImplicitUsings>enable</ImplicitUsings>
+     <Nullable>enable</Nullable>
+   </PropertyGroup>