diff --git a/.github/workflows/ci-fork.yml b/.github/workflows/ci-fork.yml
new file mode 100644
index 00000000000..213cad09567
--- /dev/null
+++ b/.github/workflows/ci-fork.yml
@@ -0,0 +1,39 @@
+name: 🍓 Fork CI
+
+# Builds and tests the forked StrawberryShake runtime packages (Razor + Core), including a
+# bUnit smoke test. Scoped to what the fork touches - not the full upstream monorepo matrix.
+# The Razor codegen snapshot tests bake the generator assembly version (0.0.0.0 locally vs the
+# stamped version in CI) so they are not CI-portable and are not run here.
+
+on:
+  pull_request:
+  push:
+    branches:
+      - fork
+      - "release/fork-*"
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Build & test forked packages
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+
+      - name: Install .NET
+        uses: actions/setup-dotnet@9a946fdbd5fb07b82b2f5a4466058b876ab72bb2 # v5.3.0
+        with:
+          dotnet-version: |
+            8.x
+            9.x
+            10.x
+            11.0.100-preview.5.26302.115
+
+      - name: Test StrawberryShake.Razor (runtime + bUnit)
+        run: dotnet test src/StrawberryShake/Client/test/Razor.Tests/StrawberryShake.Razor.Tests.csproj -c Release
+
+      - name: Test StrawberryShake.Core
+        run: dotnet test src/StrawberryShake/Client/test/Core.Tests/StrawberryShake.Core.Tests.csproj -c Release
diff --git a/src/Directory.Packages.props b/src/Directory.Packages.props
index 7acff5dbc26..595a5f6dc13 100644
--- a/src/Directory.Packages.props
+++ b/src/Directory.Packages.props
@@ -74,6 +74,7 @@
     <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.0" />
     <PackageVersion Include="System.Reactive" Version="6.1.0" />
     <PackageVersion Include="Testcontainers" Version="4.11.0" />
+    <PackageVersion Include="bunit" Version="2.7.2" />
     <PackageVersion Include="xunit.assert" Version="2.9.3" />
     <PackageVersion Include="xunit.extensibility.core" Version="2.9.3" />
     <PackageVersion Include="xunit.extensibility.execution" Version="2.9.3" />
diff --git a/src/StrawberryShake/Client/test/Razor.Tests/StrawberryShake.Razor.Tests.csproj b/src/StrawberryShake/Client/test/Razor.Tests/StrawberryShake.Razor.Tests.csproj
index cb439f6db37..81ce15bfa89 100644
--- a/src/StrawberryShake/Client/test/Razor.Tests/StrawberryShake.Razor.Tests.csproj
+++ b/src/StrawberryShake/Client/test/Razor.Tests/StrawberryShake.Razor.Tests.csproj
@@ -9,6 +9,10 @@
     <TargetFrameworks>net11.0;net10.0</TargetFrameworks>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="bunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\..\src\Razor\StrawberryShake.Razor.csproj" />
   </ItemGroup>
diff --git a/src/StrawberryShake/Client/test/Razor.Tests/UseFragmentBunitTests.cs b/src/StrawberryShake/Client/test/Razor.Tests/UseFragmentBunitTests.cs
new file mode 100644
index 00000000000..0b47d4cbe97
--- /dev/null
+++ b/src/StrawberryShake/Client/test/Razor.Tests/UseFragmentBunitTests.cs
@@ -0,0 +1,32 @@
+using Bunit;
+
+namespace StrawberryShake.Razor;
+
+/// <summary>
+/// Smoke tests confirming bUnit can render the StrawberryShake.Razor components.
+/// </summary>
+public class UseFragmentBunitTests : BunitContext
+{
+    [Fact]
+    public void Renders_ChildContent_When_Data_Is_Present()
+    {
+        // arrange & act
+        var cut = Render<UseFragment<string>>(parameters => parameters
+            .Add(p => p.Data, "Strawberry")
+            .Add(p => p.ChildContent, data => $"<span>{data}</span>"));
+
+        // assert
+        cut.MarkupMatches("<span>Strawberry</span>");
+    }
+
+    [Fact]
+    public void Renders_LoadingContent_When_Data_Is_Null()
+    {
+        // arrange & act
+        var cut = Render<UseFragment<string>>(parameters => parameters
+            .Add(p => p.LoadingContent, "<em>loading</em>"));
+
+        // assert
+        cut.MarkupMatches("<em>loading</em>");
+    }
+}