diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 70bf4307..b982324d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -410,6 +410,18 @@ jobs:
           dotnet build "${{ env.UI_PROJECT }}" -c ${{ env.BUILD_CONFIGURATION }} $BUILD_PROPS
           dotnet build "${{ env.MACOS_PROJECT }}" -c ${{ env.BUILD_CONFIGURATION }} $BUILD_PROPS
 
+      # Runs the macOS composition root before publish. "Run Tests" at the end of this job
+      # already covered this project, but it sits after Publish and Smoke Test App Launch —
+      # so an unresolvable service killed the job at the smoke test, as a status-134 crash
+      # after packaging, and the assertion that names the service never executed. Running it
+      # here fails in seconds with the service name. A missing platform registration is
+      # invisible to per-branch CI, appearing only once both halves are merged, so this is
+      # the earliest point it can surface.
+      - name: Run macOS Tests
+        run: |
+          dotnet test GenHub/GenHub.Tests/GenHub.Tests.MacOS/GenHub.Tests.MacOS.csproj \
+            -c ${{ env.BUILD_CONFIGURATION }} --verbosity normal
+
       - name: Publish macOS App
         run: |
           BUILD_PROPS="-p:Version=${{ steps.buildinfo.outputs.VERSION }} -p:GitShortHash=${{ steps.buildinfo.outputs.SHORT_HASH }} -p:PullRequestNumber=${{ steps.buildinfo.outputs.PR_NUMBER }} -p:BuildChannel=${{ steps.buildinfo.outputs.CHANNEL }}"
@@ -484,7 +496,9 @@ jobs:
         shell: bash
         run: |
           while IFS= read -r test_project; do
-            [[ "$test_project" == *Windows* || "$test_project" == *Linux* ]] && continue
+            # MacOS is covered by "Run macOS Tests" before publish, so it is skipped
+            # here rather than run a second time.
+            [[ "$test_project" == *Windows* || "$test_project" == *Linux* || "$test_project" == *MacOS* ]] && continue
             echo "Testing $test_project"
             dotnet test "$test_project" -c ${{ env.BUILD_CONFIGURATION }} --verbosity normal
           done < <(find GenHub/GenHub.Tests -type f -name '*.csproj' | sort)
diff --git a/GenHub/GenHub.MacOS/Infrastructure/DependencyInjection/MacOSServicesModule.cs b/GenHub/GenHub.MacOS/Infrastructure/DependencyInjection/MacOSServicesModule.cs
index ac9db992..4b761b29 100644
--- a/GenHub/GenHub.MacOS/Infrastructure/DependencyInjection/MacOSServicesModule.cs
+++ b/GenHub/GenHub.MacOS/Infrastructure/DependencyInjection/MacOSServicesModule.cs
@@ -1,11 +1,17 @@
-using System.Runtime.Versioning;
 using GenHub.Core.Interfaces.GameInstallations;
+using GenHub.Core.Interfaces.GameSettings;
 using GenHub.Core.Interfaces.Shortcuts;
+using GenHub.Core.Interfaces.Storage;
+using GenHub.Core.Interfaces.Workspace;
 using GenHub.Features.AppUpdate.Interfaces;
 using GenHub.Features.AppUpdate.Services;
+using GenHub.Features.GameSettings;
+using GenHub.Features.Workspace;
 using GenHub.MacOS.Features.Shortcuts;
 using GenHub.MacOS.GameInstallations;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using System.Runtime.Versioning;
 
 namespace GenHub.MacOS.Infrastructure.DependencyInjection;
 
@@ -23,8 +29,21 @@ public static class MacOSServicesModule
     public static IServiceCollection AddMacOSServices(this IServiceCollection services)
     {
         services.AddSingleton<IGameInstallationDetector, MacOSInstallationDetector>();
+        services.AddSingleton<IGamePathProvider, MacOSGamePathProvider>();
+        services.AddSingleton<ISymlinkCapabilityProvider, UnixSymlinkCapabilityProvider>();
         services.AddSingleton<IShortcutService, MacOSShortcutService>();
 
+        // Real hard links via link(2). Without this the base implementation throws, which
+        // is deliberate: silently copying made a missing registration invisible while
+        // every workspace consumed a full copy of the game.
+        services.AddScoped<IFileOperationsService>(serviceProvider =>
+        {
+            var baseService = serviceProvider.GetRequiredService<FileOperationsService>();
+            var casService = serviceProvider.GetRequiredService<ICasService>();
+            var logger = serviceProvider.GetRequiredService<ILogger<UnixFileOperationsService>>();
+            return new UnixFileOperationsService(baseService, casService, logger);
+        });
+
         // Disables self-update on macOS, which publishes no update artifacts.
         // AppServices.ConfigureApplicationServices invokes the platform module after
         // AddAppUpdateModule, so this registration supersedes VelopackUpdateManager.
diff --git a/GenHub/GenHub.Tests/Shared/CompositionRootAssertions.cs b/GenHub/GenHub.Tests/Shared/CompositionRootAssertions.cs
index 0d647112..7e446415 100644
--- a/GenHub/GenHub.Tests/Shared/CompositionRootAssertions.cs
+++ b/GenHub/GenHub.Tests/Shared/CompositionRootAssertions.cs
@@ -4,6 +4,7 @@
 using GenHub.Common.ViewModels;
 using GenHub.Core.Interfaces.Common;
 using GenHub.Core.Interfaces.GameInstallations;
+using GenHub.Core.Interfaces.GameSettings;
 using GenHub.Core.Interfaces.Shortcuts;
 using GenHub.Core.Interfaces.Workspace;
 using GenHub.Features.AppUpdate.Interfaces;
@@ -43,7 +44,9 @@ public static class CompositionRootAssertions
     [
         typeof(IConfigurationProviderService),
         typeof(IFileOperationsService),
+        typeof(IGamePathProvider),
         typeof(IShortcutService),
+        typeof(ISymlinkCapabilityProvider),
         typeof(IVelopackUpdateManager),
     ];