Add dotnet workload based on the WinUI workload model

src/Workloads/_common/content-hashes.ps1

@@ -1,6 +1,5 @@
 $Script:DevConfigWorkloadContentHashes = @{
     'cuda\smoke.cu' = '6252383bda8856daa14c4f315961e17d4de3bdba1cba6bf4c09a5d0aa52a2a6f'
-    'dotnet\configuration.winget' = 'cba2c6873cee7eff241b6d7698d773f8575cfc60a6e9d7dbb8986f4ecea5c048'
     'go\configuration.winget' = '552e6fe17baa47df8d1f429735cdd718bdb61b052a86cc47e8f8c6c2cd22232c'
     'intel-ai\openvino-smoke.py' = '0b71b5f5351dd7536c6352dc02ffd523fa89f2fa60a23ff27d45fd3e8f9c1326'
     'intel-ai\sycl-smoke.cpp' = '6ed0361d8374bcae060b84469b3b167738f016abc9f3b46ba5f19ad870bd74b7'

src/Workloads/dotnet/setup.ps1

@@ -0,0 +1,19 @@
+[CmdletBinding()]
+param()
+
+& {
+    $ErrorActionPreference = 'Stop'
+    Set-StrictMode -Version Latest
+
+    $env:PSModulePath = "$PSHOME\Modules;$env:PSModulePath"
+
+    [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
+    $payloadRef = '2dc3d2d30953c12639ad2824c1ff11ca606175d7'
+    $bootstrap = (Invoke-RestMethod -Uri "https://raw.githubusercontent.com/microsoft/WindowsDeveloperConfig/$payloadRef/windows-dev-config/bootstrap.ps1" -UseBasicParsing -TimeoutSec 60).TrimStart([char]0xFEFF)
+    $signature = Get-AuthenticodeSignature -Content ([Text.Encoding]::Unicode.GetBytes($bootstrap)) -SourcePathOrExtension '.ps1'
+    if ($signature.Status -ne 'Valid' -or -not $signature.SignerCertificate -or
+        $signature.SignerCertificate.Subject -ne 'CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US') {
+        throw 'The setup bootstrap failed Microsoft signature verification. Setup was not started.'
+    }
+    & ([scriptblock]::Create($bootstrap)) -Ref $payloadRef -Workload dotnet -Action Full
+}

src/docs/development.md

@@ -114,7 +114,7 @@ Workloads/
   typescript/      # configuration.winget (core) + install.ps1 (thin shim)
   php/             # setup.ps1 (one-line setup via the engine)
   python/          # configuration.winget (core) + install.ps1 (thin shim)
-  dotnet/          # configuration.winget (core) + install.ps1 (thin shim)
+  dotnet/          # setup.ps1 (one-line setup via the engine)
   go/              # configuration.winget (core) + install.ps1 (thin shim)
   java/            # configuration.winget (core) + install.ps1 (thin shim)
   rust/            # configuration.winget (core) + install.ps1 (thin shim)

src/manifest.yml

@@ -177,10 +177,15 @@ flows:
     tags: [dotnet, csharp, fsharp, net]
     icon: 🟣
     onboardingUrl: https://learn.microsoft.com/dotnet/core/install/windows
+    # PowerShell-native flow: Workloads/dotnet/setup.ps1 runs the Windows Dev
+    # Config engine (windows-dev-config/workloads/dotnet.ps1). There is no
+    # configuration.winget, so the `configuration` key is omitted (same shape
+    # as winui). manual_test because the engine entry point needs a signed
+    # release cycle and elevation, which the automated matrix can't provide.
+    manual_test: true
     os: [windows]
     windows:
-      install: Workloads/dotnet/install.ps1
-      configuration: Workloads/dotnet/configuration.winget
+      install: Workloads/dotnet/setup.ps1
       build: dotnet build src/tests/dotnet/hello.csproj -c Release -v q --nologo -o src/tests/dotnet/bin
       run: src\tests\dotnet\bin\hello.exe
       expected: src/tests/dotnet/expected.txt

src/windows-dev-config/README.md

@@ -106,6 +106,7 @@ The same engine can apply one developer workload instead of the whole workstatio
 | Workload | Installs | One-liner |
 | --- | --- | --- |
 | `winui` | Developer Mode, PowerShell 7, .NET SDK 10, Windows App CLI, Visual Studio Community 2026 with the .NET desktop and WinUI application development workloads, and the WinUI `dotnet new` templates | `irm https://aka.ms/devconfig/winui/setup.ps1 \| iex` |
+| `dotnet` | Developer Mode, PowerShell 7, and .NET SDK 10 | `irm https://aka.ms/devconfig/dotnet/setup.ps1 \| iex` |
 | `php` | PowerShell 7 and the PHP runtime/CLI | `irm https://aka.ms/devconfig/php/setup.ps1 \| iex` |
 
 The short URL points at the signed wrapper [`Workloads/winui/setup.ps1`](../Workloads/winui/setup.ps1),

src/windows-dev-config/workloads/dotnet.ps1

@@ -0,0 +1,45 @@
+<#
+.SYNOPSIS
+  .NET SDK: Developer Mode and .NET SDK 10.
+
+.DESCRIPTION
+  Workload definition read by dev-config.ps1. It follows the same shape as the WinUI
+  workload, trimmed to the .NET SDK only: no Visual Studio, Windows App Development CLI,
+  or UI framework templates. The phase files under steps\ do the work.
+#>
+
+[CmdletBinding()]
+param(
+    [string] $Action = 'Full'
+)
+
+$ErrorActionPreference = 'Stop'
+Set-StrictMode -Version Latest
+
+@{
+    Name    = '.NET SDK'
+    Actions = @('Full')
+    Notes   = @(
+        'Open a new terminal so dotnet is on PATH.'
+        'Create an app with: dotnet new console -n MyApp, or any other dotnet new template.'
+    )
+    Phases  = @(
+        @{
+            File     = 'prerequisites.ps1'
+            Function = 'Invoke-PrerequisitesPhase'
+            Title    = 'Getting ready'
+        }
+        @{
+            File     = 'registry-system.ps1'
+            Function = 'Invoke-RegistrySystemPhase'
+            Title    = 'Developer Mode'
+            Steps    = @('DeveloperMode')
+        }
+        @{
+            File       = 'packages.ps1'
+            Function   = 'Invoke-PackagesPhase'
+            Title      = 'Packages'
+            Parameters = @{ Packages = @('PowerShell', 'DotnetSdk') }
+        }
+    )
+}