diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 4cbe444..aa286f5 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -26,9 +26,33 @@ jobs:
               with:
                   go-version-file: gomuks/go.mod
 
+            - name: Debug macOS compiler
+              run: |
+                  echo "CC:"
+                  go env CC
+
+                  echo "SDKROOT:"
+                  echo "$SDKROOT"
+
+                  echo "xcrun SDK:"
+                  xcrun --sdk macosx --show-sdk-path
+
+                  echo "clang:"
+                  xcrun --sdk macosx --find clang
+
+                  echo "clang search paths:"
+                  echo '#include <stdlib.h>' | \
+                  xcrun --sdk macosx clang -v -E -x c - >/dev/null
+
             - name: Build app
               run: |
                   flutter pub get
                   dart scripts/generate.dart
                   flutter pub run build_runner build
                   flutter build macos --release
+
+            - name: Upload installer artifact
+              uses: actions/upload-artifact@v6
+              with:
+                  name: App
+                  path: build/macos/Build/Products/Release/Nexus.app