diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-AnyCPU-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-AnyCPU-Steps.yml
index 274e08630a..05402f3ce0 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-AnyCPU-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-AnyCPU-Steps.yml
@@ -5,6 +5,12 @@ parameters:
 - name: runPREfast
   type: boolean
   default: false
+# When true, this template is being invoked from the monobuild context where
+# the WindowsAppSDK monorepo IS the self repo. EsrpCodeSigning-Steps is invoked
+# WITHOUT the @WinAppSDK suffix.
+- name: IsMonobuild
+  type: boolean
+  default: false
 
 steps:
 - task: NuGetAuthenticate@1
@@ -53,16 +59,18 @@ steps:
     failOnAlert: false #changed true to false, temporary workaround for component governance blocking pipeline due to low .NET version
 
 - ${{ if eq(parameters.SignOutput, 'true') }}:
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
     parameters:
-      FolderPath: '$(build.SourcesDirectory)\BuildOutput'
-      UseMinimatch: true
-      Pattern: |
-        **/*.winmd
-        **/*.dll
-        **/*.exe
-      KeyCode: 'CP-230012'
-      displayName: 'Authenticode CodeSign Binaries'
+      IsMonobuild: ${{ parameters.IsMonobuild }}
+      InnerParams:
+        FolderPath: '$(build.SourcesDirectory)\BuildOutput'
+        UseMinimatch: true
+        Pattern: |
+          **/*.winmd
+          **/*.dll
+          **/*.exe
+        KeyCode: 'CP-230012'
+        displayName: 'Authenticode CodeSign Binaries'
 
 # Artifacts are uploaded via ob_outputDirectory where the each vPack Push jobs downloads from
 # so the CopyFiles below are to move all the vPack files to the right locations
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-Steps.yml
index 6d2479029e..92c4edf350 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildFoundation-Steps.yml
@@ -8,6 +8,12 @@ parameters:
 - name: runPREfast
   type: boolean
   default: false
+# When true, this template is being invoked from the monobuild context where
+# the WindowsAppSDK monorepo IS the self repo. The shared EsrpCodeSigning-Steps
+# template is invoked WITHOUT the @WinAppSDK suffix.
+- name: IsMonobuild
+  type: boolean
+  default: false
 
 steps:
 - task: NuGetAuthenticate@1
@@ -132,16 +138,18 @@ steps:
   #  continueOnError: true
 
 - ${{ if eq(parameters.SignOutput, 'true') }}:
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
     parameters:
-      FolderPath: '$(build.SourcesDirectory)\BuildOutput'
-      UseMinimatch: true
-      Pattern: |
-        **/*.winmd
-        **/*.dll
-        **/*.exe
-      KeyCode: 'CP-230012'
-      displayName: 'Authenticode CodeSign Binaries'
+      IsMonobuild: ${{ parameters.IsMonobuild }}
+      InnerParams:
+        FolderPath: '$(build.SourcesDirectory)\BuildOutput'
+        UseMinimatch: true
+        Pattern: |
+          **/*.winmd
+          **/*.dll
+          **/*.exe
+        KeyCode: 'CP-230012'
+        displayName: 'Authenticode CodeSign Binaries'
 
 # Artifacts are uploaded via ob_outputDirectory where the each vPack Push jobs downloads from
 # so the CopyFiles below are to move all the vPack files to the right locations
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildInstaller-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildInstaller-Steps.yml
index 32f94a8e1e..85daa9a53b 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildInstaller-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildInstaller-Steps.yml
@@ -11,6 +11,12 @@ parameters:
 - name: UseCurrentBuild
   type: boolean
   default: false 
+# When true, this template is being invoked from the monobuild context where
+# the WindowsAppSDK monorepo IS the self repo. PublishSymbol-Steps and
+# EsrpCodeSigning-Steps are invoked WITHOUT the @WinAppSDK suffix.
+- name: IsMonobuild
+  type: boolean
+  default: false
 
 steps:
 - task: PowerShell@2
@@ -288,19 +294,23 @@ steps:
     failOnAlert: false
   condition: and(succeeded(), ne(variables.SkipInstallerBuild, true))
 
-- template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Steps.yml@WinAppSDK
+- template: WindowsAppSDK-PublishSymbol-Wrapper.yml
   parameters:
-    SearchPattern: '$(foundationRepoPath)BuildOutput\$(buildConfiguration)\$(buildPlatform)\WindowsAppRuntimeInstall\*.pdb'
-    IsOfficial: ${{ parameters.IsOfficial }}
-    condition: and(succeeded(), ne(variables.SkipInstallerBuild, true))
+    IsMonobuild: ${{ parameters.IsMonobuild }}
+    InnerParams:
+      SearchPattern: '$(foundationRepoPath)BuildOutput\$(buildConfiguration)\$(buildPlatform)\WindowsAppRuntimeInstall\*.pdb'
+      IsOfficial: ${{ parameters.IsOfficial }}
+      condition: and(succeeded(), ne(variables.SkipInstallerBuild, true))
 
 - ${{ if eq(parameters.SignOutput, 'true') }}:
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
     parameters:
-      FolderPath: $(foundationRepoPath)BuildOutput\$(buildConfiguration)\$(buildPlatform)\WindowsAppRuntimeInstall
-      Pattern: WindowsAppRuntimeInstall*.exe
-      UseMinimatch: true
-      KeyCode: 'CP-230012'
+      IsMonobuild: ${{ parameters.IsMonobuild }}
+      InnerParams:
+        FolderPath: $(foundationRepoPath)BuildOutput\$(buildConfiguration)\$(buildPlatform)\WindowsAppRuntimeInstall
+        Pattern: WindowsAppRuntimeInstall*.exe
+        UseMinimatch: true
+        KeyCode: 'CP-230012'
 
 - task: CopyFiles@2
   displayName: 'Publish Installer'
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildMRT-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildMRT-Steps.yml
index b650e5436c..1eb562b81f 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildMRT-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildMRT-Steps.yml
@@ -8,6 +8,12 @@ parameters:
 - name: runPREfast
   type: boolean
   default: false
+# When true, this template is being invoked from the monobuild context where
+# the WindowsAppSDK monorepo IS the self repo. EsrpCodeSigning-Steps is invoked
+# WITHOUT the @WinAppSDK suffix.
+- name: IsMonobuild
+  type: boolean
+  default: false
 
 steps:
 - template: WindowsAppSDK-SetupBuildEnvironment-Steps.yml
@@ -74,16 +80,18 @@ steps:
 - task: ms.vss-governance-buildtask.governance-build-task-component-detection.ComponentGovernanceComponentDetection@0
 
 - ${{ if eq(parameters.SignOutput, 'true') }}:
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
     parameters:
-      FolderPath: '$(build.SourcesDirectory)\BuildOutput'
-      UseMinimatch: true
-      Pattern: |
-        **/*.winmd
-        **/*.dll
-        **/*.exe
-      KeyCode: 'CP-230012'
-      displayName: 'Authenticode CodeSign Binaries'
+      IsMonobuild: ${{ parameters.IsMonobuild }}
+      InnerParams:
+        FolderPath: '$(build.SourcesDirectory)\BuildOutput'
+        UseMinimatch: true
+        Pattern: |
+          **/*.winmd
+          **/*.dll
+          **/*.exe
+        KeyCode: 'CP-230012'
+        displayName: 'Authenticode CodeSign Binaries'
 
 - task: CopyFiles@2
   displayName: MoveToOutputDirectory
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildVSIX-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildVSIX-Steps.yml
index 1412ca9bb5..dc3e61154b 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-BuildVSIX-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-BuildVSIX-Steps.yml
@@ -11,6 +11,12 @@ parameters:
 - name: UseCurrentBuild
   type: boolean
   default: false 
+# When true, this template is being invoked from the monobuild context where
+# the WindowsAppSDK monorepo IS the self repo. PublishSymbol-Steps is invoked
+# WITHOUT the @WinAppSDK suffix.
+- name: IsMonobuild
+  type: boolean
+  default: false
 - name: OptionalVSIXVersion
   # if blank, the project template will select the version matching the Windows App SDK
   # nuget. If provided, it should be a 4-part dotted version ('1.2.3.4')
@@ -193,10 +199,12 @@ steps:
       codeSignPattern: |
         **/WindowsAppSDK.*.Extension.*.dll
         
-- template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Steps.yml@WinAppSDK
+- template: WindowsAppSDK-PublishSymbol-Wrapper.yml
   parameters:
-    SearchPattern: '$(FoundationRepoPath)dev\VSIX\BuildOutput\obj\AnyCPU$(buildConfiguration)\**\WindowsAppSDK*.pdb'
-    IsOfficial: ${{ parameters.IsOfficial }}
+    IsMonobuild: ${{ parameters.IsMonobuild }}
+    InnerParams:
+      SearchPattern: '$(FoundationRepoPath)dev\VSIX\BuildOutput\obj\AnyCPU$(buildConfiguration)\**\WindowsAppSDK*.pdb'
+      IsOfficial: ${{ parameters.IsOfficial }}
 
 - task: CopyFiles@2
   displayName: 'Stage VSIX component JSONs'
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-ConvertWttLogToXUnit-Wrapper.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-ConvertWttLogToXUnit-Wrapper.yml
new file mode 100644
index 0000000000..7dbc8e27d0
--- /dev/null
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-ConvertWttLogToXUnit-Wrapper.yml
@@ -0,0 +1,18 @@
+# Wrapper for WindowsAppSDK-ConvertWttLogToXUnit-Steps.yml that dispatches to either
+# @WinAppSDK (per-component pipelines) or @self (monobuild) at compile time.
+
+parameters:
+  - name: IsMonobuild
+    type: boolean
+    default: false
+  - name: InnerParams
+    type: object
+    default: {}
+
+steps:
+  - ${{ if parameters.IsMonobuild }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-ConvertWttLogToXUnit-Steps.yml@self
+      parameters: ${{ parameters.InnerParams }}
+  - ${{ else }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-ConvertWttLogToXUnit-Steps.yml@WinAppSDK
+      parameters: ${{ parameters.InnerParams }}
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-DetermineVersion-Wrapper.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-DetermineVersion-Wrapper.yml
new file mode 100644
index 0000000000..54565092ea
--- /dev/null
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-DetermineVersion-Wrapper.yml
@@ -0,0 +1,18 @@
+# Wrapper for WindowsAppSDK-DetermineVersion-Steps.yml that dispatches to either
+# @WinAppSDK (per-component pipelines) or @self (monobuild) at compile time.
+
+parameters:
+  - name: IsMonobuild
+    type: boolean
+    default: false
+  - name: InnerParams
+    type: object
+    default: {}
+
+steps:
+  - ${{ if parameters.IsMonobuild }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-DetermineVersion-Steps.yml@self
+      parameters: ${{ parameters.InnerParams }}
+  - ${{ else }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-DetermineVersion-Steps.yml@WinAppSDK
+      parameters: ${{ parameters.InnerParams }}
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Wrapper.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
new file mode 100644
index 0000000000..9607e86f19
--- /dev/null
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
@@ -0,0 +1,19 @@
+# Wrapper for WindowsAppSDK-EsrpCodeSigning-Steps.yml that dispatches to either
+# @WinAppSDK (per-component pipelines) or @self (monobuild) at compile time.
+# This eliminates if/else duplication at each call site.
+
+parameters:
+  - name: IsMonobuild
+    type: boolean
+    default: false
+  - name: InnerParams
+    type: object
+    default: {}
+
+steps:
+  - ${{ if parameters.IsMonobuild }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@self
+      parameters: ${{ parameters.InnerParams }}
+  - ${{ else }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@WinAppSDK
+      parameters: ${{ parameters.InnerParams }}
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-PackTransportPackage-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-PackTransportPackage-Steps.yml
index de24c8edb1..09ca5e5897 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-PackTransportPackage-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-PackTransportPackage-Steps.yml
@@ -28,6 +28,14 @@ parameters:
   - name: mrtArtifactPrefix
     type: string
     default: 'MrtBinaries_release'
+  # When true, this template is being invoked from the monobuild context where
+  # the WindowsAppSDK monorepo IS the self repo. Shared templates (PublishSymbol,
+  # DetermineVersion, EsrpCodeSigning) are invoked WITHOUT @WinAppSDK suffix.
+  # When false (default, per-component pipeline context), shared templates are
+  # invoked via @WinAppSDK to reach the monobuild repo as a cross-repo resource.
+  - name: IsMonobuild
+    type: boolean
+    default: false
 
 steps:
   - task: NuGetAuthenticate@1
@@ -46,7 +54,10 @@ steps:
         pipeline: $(_foundationBuildOutputPipeline)
         pipelineId: $(_foundationBuildOutputBuildId)
         artifactName: "${{ parameters.foundationArtifactPrefix }}_${{ platform }}"
-        targetPath: '$(Build.SourcesDirectory)\BuildOutput'
+        ${{ if parameters.IsMonobuild }}:
+          targetPath: '$(Build.SourcesDirectory)\WindowsAppSDK\BuildOutput'
+        ${{ else }}:
+          targetPath: '$(Build.SourcesDirectory)\BuildOutput'
 
   # ── Download MRT build artifacts ──
   - ${{ each platform in split('x64;x86;arm64', ';') }}:
@@ -59,65 +70,114 @@ steps:
         pipeline: $(_foundationBuildOutputPipeline)
         pipelineId: $(_foundationBuildOutputBuildId)
         artifactName: "${{ parameters.mrtArtifactPrefix }}_${{ platform }}"
-        targetPath: '$(Build.SourcesDirectory)\BuildOutput'
+        ${{ if parameters.IsMonobuild }}:
+          targetPath: '$(Build.SourcesDirectory)\WindowsAppSDK\BuildOutput'
+        ${{ else }}:
+          targetPath: '$(Build.SourcesDirectory)\BuildOutput'
 
   # ── Stage files + symbols ──
+  # In monobuild context:
+  #   - Self (WinAppSDK monorepo) is checked out at $(Build.SourcesDirectory)\WinAppSDK
+  #   - Foundation is checked out at  $(Build.SourcesDirectory)\WindowsAppSDK
+  # BuildAll.ps1 (in Foundation root) reads the license at the relative path
+  # `WinAppSDK\Build\WindowsAppSDK\NuGetLicense\...`, resolved against its own
+  # location. Mirror it there from the monorepo's copy so BuildAll.ps1 finds it.
+  - ${{ if parameters.IsMonobuild }}:
+    - task: PowerShell@2
+      displayName: 'Mirror NuGetLicense files to BuildAll.ps1-expected path (monobuild)'
+      inputs:
+        targetType: 'inline'
+        script: |
+          $src = Join-Path $env:BUILD_SOURCESDIRECTORY 'WinAppSDK\Build\WindowsAppSDK\NuGetLicense'
+          $dst = Join-Path $env:BUILD_SOURCESDIRECTORY 'WindowsAppSDK\WinAppSDK\Build\WindowsAppSDK\NuGetLicense'
+          if (-not (Test-Path $src)) { throw "Source NuGetLicense path not found: $src" }
+          New-Item -ItemType Directory -Force -Path (Split-Path $dst -Parent) | Out-Null
+          Copy-Item -Recurse -Force $src $dst
+          Write-Host "Mirrored $src -> $dst"
+
   - task: PowerShell@2
     name: StageFiles
     inputs:
-      filePath: 'BuildAll.ps1'
+      ${{ if parameters.IsMonobuild }}:
+        filePath: '$(Build.SourcesDirectory)\WindowsAppSDK\BuildAll.ps1'
+        workingDirectory: '$(Build.SourcesDirectory)\WindowsAppSDK'
+      ${{ else }}:
+        filePath: 'BuildAll.ps1'
       arguments: -Platform "x86,x64,arm64" -Configuration "release" -AzureBuildStep "StageFiles"
 
   - task: CopyFiles@2
     displayName: 'Copy symbols to artifact staging directory'
     condition: always()
     inputs:
-      sourceFolder: $(Build.SourcesDirectory)\BuildOutput\FullNuget
+      ${{ if parameters.IsMonobuild }}:
+        sourceFolder: $(Build.SourcesDirectory)\WindowsAppSDK\BuildOutput\FullNuget
+      ${{ else }}:
+        sourceFolder: $(Build.SourcesDirectory)\BuildOutput\FullNuget
       contents: |
         **\*.pdb
       targetFolder: $(Build.ArtifactStagingDirectory)\symbols
 
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-PublishSymbol-Wrapper.yml
     parameters:
-      SearchPattern: '$(Build.ArtifactStagingDirectory)\symbols\**\*.pdb'
-      IsOfficial: ${{ parameters.IsOfficial }}
+      IsMonobuild: ${{ parameters.IsMonobuild }}
+      InnerParams:
+        SearchPattern: '$(Build.ArtifactStagingDirectory)\symbols\**\*.pdb'
+        IsOfficial: ${{ parameters.IsOfficial }}
 
   # ── Determine version + pack NuGet ──
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-DetermineVersion-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-DetermineVersion-Wrapper.yml
     parameters:
-      IsOfficial: ${{ parameters.IsOfficial }}
+      IsMonobuild: ${{ parameters.IsMonobuild }}
+      InnerParams:
+        IsOfficial: ${{ parameters.IsOfficial }}
 
   - task: PowerShell@2
     name: SetVersion
     displayName: Update metapackage version
     inputs:
       targetType: 'inline'
-      script: |
-        $packageVersion = '$(WindowsAppSDKFormattedVersion)'
-        [xml]$publicNuspec = Get-Content -Path $(Build.SourcesDirectory)\build\NuSpecs\Microsoft.WindowsAppSDK.Foundation.TransportPackage.nuspec
-        $publicNuspec.package.metadata.version = $packageVersion
-        Set-Content -Value $publicNuspec.OuterXml $(Build.SourcesDirectory)\build\NuSpecs\Microsoft.WindowsAppSDK.Foundation.TransportPackage.nuspec
+      ${{ if parameters.IsMonobuild }}:
+        script: |
+          $packageVersion = '$(WindowsAppSDKFormattedVersion)'
+          [xml]$publicNuspec = Get-Content -Path $(Build.SourcesDirectory)\WindowsAppSDK\build\NuSpecs\Microsoft.WindowsAppSDK.Foundation.TransportPackage.nuspec
+          $publicNuspec.package.metadata.version = $packageVersion
+          Set-Content -Value $publicNuspec.OuterXml $(Build.SourcesDirectory)\WindowsAppSDK\build\NuSpecs\Microsoft.WindowsAppSDK.Foundation.TransportPackage.nuspec
+      ${{ else }}:
+        script: |
+          $packageVersion = '$(WindowsAppSDKFormattedVersion)'
+          [xml]$publicNuspec = Get-Content -Path $(Build.SourcesDirectory)\build\NuSpecs\Microsoft.WindowsAppSDK.Foundation.TransportPackage.nuspec
+          $publicNuspec.package.metadata.version = $packageVersion
+          Set-Content -Value $publicNuspec.OuterXml $(Build.SourcesDirectory)\build\NuSpecs\Microsoft.WindowsAppSDK.Foundation.TransportPackage.nuspec
 
   - task: PowerShell@2
     name: PackNuget
     inputs:
-      filePath: 'BuildAll.ps1'
+      ${{ if parameters.IsMonobuild }}:
+        filePath: '$(Build.SourcesDirectory)\WindowsAppSDK\BuildAll.ps1'
+        workingDirectory: '$(Build.SourcesDirectory)\WindowsAppSDK'
+      ${{ else }}:
+        filePath: 'BuildAll.ps1'
       arguments: -Platform "x64" -Configuration "release" -AzureBuildStep "PackNuget" -OutputDirectory "$(build.artifactStagingDirectory)\FullNuget" -PackageVersion "$(WindowsAppSDKFormattedVersion)" -ComponentPackageVersion "$(WindowsAppSDKFormattedVersion)" -WindowsAppSDKVersionPinned "$(WindowsAppSDKVersionPinned)"
 
   # ── Sign ──
   - ${{ if eq(parameters.SignOutput, 'true') }}:
-    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-EsrpCodeSigning-Steps.yml@WinAppSDK
+    - template: WindowsAppSDK-EsrpCodeSigning-Wrapper.yml
       parameters:
-        FolderPath: $(build.artifactStagingDirectory)\FullNuget
-        Pattern: 'Microsoft.WindowsAppSDK.Foundation*.nupkg'
-        KeyCode: 'CP-401405'
-        UseMinimatch: true
+        IsMonobuild: ${{ parameters.IsMonobuild }}
+        InnerParams:
+          FolderPath: $(build.artifactStagingDirectory)\FullNuget
+          Pattern: 'Microsoft.WindowsAppSDK.Foundation*.nupkg'
+          KeyCode: 'CP-401405'
+          UseMinimatch: true
 
   # ── Stage output ──
   - task: CopyFiles@2
     displayName: MoveToOutputDirectory
     inputs:
-      SourceFolder: '$(Build.SourcesDirectory)\BuildOutput\FullNuget'
+      ${{ if parameters.IsMonobuild }}:
+        SourceFolder: '$(Build.SourcesDirectory)\WindowsAppSDK\BuildOutput\FullNuget'
+      ${{ else }}:
+        SourceFolder: '$(Build.SourcesDirectory)\BuildOutput\FullNuget'
       TargetFolder: '$(ob_outputDirectory)\NugetContent'
 
   - task: CopyFiles@2
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Wrapper.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Wrapper.yml
new file mode 100644
index 0000000000..6ebddff9f3
--- /dev/null
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Wrapper.yml
@@ -0,0 +1,18 @@
+# Wrapper for WindowsAppSDK-PublishSymbol-Steps.yml that dispatches to either
+# @WinAppSDK (per-component pipelines) or @self (monobuild) at compile time.
+
+parameters:
+  - name: IsMonobuild
+    type: boolean
+    default: false
+  - name: InnerParams
+    type: object
+    default: {}
+
+steps:
+  - ${{ if parameters.IsMonobuild }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Steps.yml@self
+      parameters: ${{ parameters.InnerParams }}
+  - ${{ else }}:
+    - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-PublishSymbol-Steps.yml@WinAppSDK
+      parameters: ${{ parameters.InnerParams }}
diff --git a/build/AzurePipelinesTemplates/WindowsAppSDK-RunTests-Steps.yml b/build/AzurePipelinesTemplates/WindowsAppSDK-RunTests-Steps.yml
index ac99f1d19e..d5e134364b 100644
--- a/build/AzurePipelinesTemplates/WindowsAppSDK-RunTests-Steps.yml
+++ b/build/AzurePipelinesTemplates/WindowsAppSDK-RunTests-Steps.yml
@@ -7,6 +7,10 @@ parameters:
   testLocale: ''
   SamplesArtifactName: ''
   callingStage: ''
+  # When 'true', this template is being invoked from the monobuild context where
+  # the WindowsAppSDK monorepo IS the self repo. ConvertWttLogToXUnit-Steps is
+  # invoked WITHOUT the @WinAppSDK suffix.
+  IsMonobuild: 'false'
 
 steps:
   - task: powershell@2
@@ -231,13 +235,15 @@ steps:
         -wprProfilePath "$(Build.SourcesDirectory)\WinAppSDK\Build\WindowsAppSDK\src\test\AppModelProviders.wprp"
         -callingStage "${{ parameters.callingStage }}"
 
-  - template: Build/WindowsAppSDK/AzurePipelinesTemplates/WindowsAppSDK-ConvertWttLogToXUnit-Steps.yml@WinAppSDK
+  - template: WindowsAppSDK-ConvertWttLogToXUnit-Wrapper.yml
     parameters:
-      WttInputPath: '$(Build.SourcesDirectory)\TestOutput\$(buildConfiguration)\$(buildPlatform)\Te.wtl'
-      xunitOutputPath: '$(Build.SourcesDirectory)\TestOutput\$(buildConfiguration)\$(buildPlatform)\testResults-$(buildConfiguration)_$(buildPlatform)_${{ parameters.ImageName }}.xml'
-      TestNamePrefix: '$(buildConfiguration)_$(buildPlatform)_${{ parameters.ImageName }}'
-      BypassTests: '$(Build.SourcesDirectory)\test\BypassTests.json'
-      CheckoutPath: '$(Build.SourcesDirectory)\WinAppSDK\Build\WindowsAppSDK'
+      IsMonobuild: ${{ eq(parameters.IsMonobuild, 'true') }}
+      InnerParams:
+        WttInputPath: '$(Build.SourcesDirectory)\TestOutput\$(buildConfiguration)\$(buildPlatform)\Te.wtl'
+        xunitOutputPath: '$(Build.SourcesDirectory)\TestOutput\$(buildConfiguration)\$(buildPlatform)\testResults-$(buildConfiguration)_$(buildPlatform)_${{ parameters.ImageName }}.xml'
+        TestNamePrefix: '$(buildConfiguration)_$(buildPlatform)_${{ parameters.ImageName }}'
+        BypassTests: '$(Build.SourcesDirectory)\test\BypassTests.json'
+        CheckoutPath: '$(Build.SourcesDirectory)\WinAppSDK\Build\WindowsAppSDK'
 
   - task: PublishTestResults@2
     displayName: 'Publish test results'