diff --git a/.github/workflows/build-reusable.yml b/.github/workflows/build-reusable.yml
index 3649ccc..cb1b20e 100644
--- a/.github/workflows/build-reusable.yml
+++ b/.github/workflows/build-reusable.yml
@@ -112,25 +112,8 @@ jobs:
       - name: Install system dependencies (macOS)
         if: runner.os == 'macOS'
         run: |
-          # Update brew first to ensure we get latest packages
-          brew update || true
-          
-          # Install libomp first and verify installation
-          echo "🍺 Installing libomp..."
-          brew install libomp
-          
-          # Verify libomp installation
-          HOMEBREW_PREFIX=$(brew --prefix)
-          echo "🔍 Verifying libomp installation at ${HOMEBREW_PREFIX}/opt/libomp"
-          ls -la ${HOMEBREW_PREFIX}/opt/libomp/lib/libomp.dylib || {
-            echo "❌ libomp.dylib not found, trying to reinstall..."
-            brew uninstall libomp || true
-            brew install libomp
-          }
-          
-          # Install other dependencies
-          echo "🍺 Installing other dependencies..."
-          brew install boost protobuf zeromq
+          # Don't install LLVM, use system clang for better compatibility
+          brew install libomp boost protobuf zeromq
 
       - name: Install build dependencies
         run: |
@@ -147,22 +130,10 @@ jobs:
           # Use brew --prefix to automatically detect Homebrew installation path
           HOMEBREW_PREFIX=$(brew --prefix)
           echo "HOMEBREW_PREFIX=${HOMEBREW_PREFIX}" >> $GITHUB_ENV
-          
-          # Debug: Check if libomp is properly installed
-          echo "🔍 Checking libomp installation:"
-          ls -la ${HOMEBREW_PREFIX}/opt/libomp/lib/ || echo "libomp lib directory not found"
-          ls -la ${HOMEBREW_PREFIX}/opt/libomp/include/ || echo "libomp include directory not found"
-          
-          # Set OpenMP environment variables
           echo "OpenMP_ROOT=${HOMEBREW_PREFIX}/opt/libomp" >> $GITHUB_ENV
-          echo "OpenMP_C_FLAGS=-Xpreprocessor -fopenmp -I${HOMEBREW_PREFIX}/opt/libomp/include" >> $GITHUB_ENV
-          echo "OpenMP_CXX_FLAGS=-Xpreprocessor -fopenmp -I${HOMEBREW_PREFIX}/opt/libomp/include" >> $GITHUB_ENV
-          echo "OpenMP_C_LIB_NAMES=omp" >> $GITHUB_ENV
-          echo "OpenMP_CXX_LIB_NAMES=omp" >> $GITHUB_ENV
-          echo "OpenMP_omp_LIBRARY=${HOMEBREW_PREFIX}/opt/libomp/lib/libomp.dylib" >> $GITHUB_ENV
 
           # Set CMAKE_PREFIX_PATH to let CMake find all packages automatically
-          echo "CMAKE_PREFIX_PATH=${HOMEBREW_PREFIX}:${HOMEBREW_PREFIX}/opt/libomp" >> $GITHUB_ENV
+          echo "CMAKE_PREFIX_PATH=${HOMEBREW_PREFIX}" >> $GITHUB_ENV
 
           # Set compiler flags for OpenMP (required for both backends)
           echo "LDFLAGS=-L${HOMEBREW_PREFIX}/opt/libomp/lib" >> $GITHUB_ENV
@@ -170,7 +141,7 @@ jobs:
 
       - name: Build packages
         run: |
-          # Build core (platform independent) on all platforms for consistency
+          # Build core (platform independent)
           cd packages/leann-core
           uv build
           cd ../..
@@ -194,22 +165,15 @@ jobs:
             # Use system clang for better compatibility
             export CC=clang
             export CXX=clang++
-            # sgesdd_ is only available on macOS 13.3+
+            # DiskANN requires macOS 13.3+ for sgesdd_ LAPACK function
             export MACOSX_DEPLOYMENT_TARGET=13.3
-            
-            # Ensure OpenMP is found during build
-            HOMEBREW_PREFIX=$(brew --prefix)
-            export OpenMP_ROOT=${HOMEBREW_PREFIX}/opt/libomp
-            export LDFLAGS="-L${HOMEBREW_PREFIX}/opt/libomp/lib ${LDFLAGS}"
-            export CPPFLAGS="-I${HOMEBREW_PREFIX}/opt/libomp/include ${CPPFLAGS}"
-            
             uv build --wheel --python ${{ matrix.python }} --find-links ${GITHUB_WORKSPACE}/packages/leann-core/dist
           else
             uv build --wheel --python ${{ matrix.python }} --find-links ${GITHUB_WORKSPACE}/packages/leann-core/dist
           fi
           cd ../..
 
-          # Build meta package (platform independent) on all platforms
+          # Build meta package (platform independent)
           cd packages/leann
           uv build
           cd ../..