diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0ef9824..0f7edd5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,78 +1,29 @@
 on:
   push:
     branches:
-      - buildscripts
-    tags:
-      - '*'
+      - buildcripts
 
 env:
-  LLVM_VERSION: 17.0.7
-  APPLE_LLVM_TAG: swift-6.1.1-RELEASE
+  LLVM_VERSION: 17.0.6
 jobs:
   build:
-    strategy:
-      matrix:
-        include:
-          - os: macos-14
-            arch: arm64
-            upload_includes: true
-          - os: macos-14
-            arch: x86_64
-    runs-on: ${{ matrix.os }}
-    env:
-      LLVM_ARCH: ${{ matrix.arch }}
+    name: Build arm
+    runs-on: macos-14
     steps:
       - uses: actions/checkout@v4
         with:
-          repository: swiftlang/llvm-project
-          ref: ${{env.APPLE_LLVM_TAG}}
-      - name: Install dependencies
-        run: |
-          brew install ninja
+          repository: llvm/llvm-project
+          ref: llvmorg-${{env.LLVM_VERSION}}
       - name: Build
         run: |
-          cmake -S llvm -B build_osx -G "Ninja" -DCMAKE_OSX_DEPLOYMENT_TARGET=11 -DCMAKE_OSX_ARCHITECTURES=$LLVM_ARCH -DLLVM_ENABLE_RUNTIMES="" -DLLVM_ENABLE_PROJECTS="clang;lld;polly" -DLLVM_ENABLE_ASSERTIONS=Off -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/tmp/llvm -DLLVM_ENABLE_ZSTD=Off -DLLVM_HOST_TRIPLE=$LLVM_ARCH-apple-darwin -DBUILD_SHARED_LIBS=Off
+          cmake -S llvm -B build_osx -G "Ninja" -DCMAKE_OSX_ARCHITECTURES=arm64 -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi" -DLLVM_ENABLE_PROJECTS="clang;lld;polly" -DLLVM_ENABLE_ASSERTIONS=Off -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/tmp/llvm-arm64
           cmake --build build_osx --target install
-      - name: Generate artifact
-        run: |
-          cd /tmp/llvm
-          mkdir dist-lib
-          mv lib dist-lib/lib_$LLVM_ARCH
-          mkdir dist-include
-          mv include dist-include/include
-      - name: Upload artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: llvm-lib-${{env.LLVM_ARCH}}
-          path: /tmp/llvm/dist-lib
-      - name: Upload includes
-        if: ${{ matrix.upload_includes }}
-        uses: actions/upload-artifact@v4
-        with:
-          name: llvm-include
-          path: /tmp/llvm/dist-include
-  artifacts:
-    name: Assemble release
-    permissions:
-      contents: write
-    runs-on: ubuntu-latest
-    needs: [build]
-    steps:
-      - name: Download all artifacts
-        uses: actions/download-artifact@v4
-        with:
-          path: ${{env.LLVM_VERSION}}
-          pattern: llvm-*
-          merge-multiple: true
-      - name: Create archive
+      - name: Compress
         run: |
-          tar -czf llvm-$LLVM_VERSION.tgz $LLVM_VERSION
+          cd /tmp
+          tar -czf llvm-arm64.tar.gz llvm-arm64
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: llvm-${{env.LLVM_VERSION}}
-          path: llvm-${{env.LLVM_VERSION}}.tgz
-      - uses: ncipollo/release-action@v1
-        if: ${{ contains(github.ref, 'refs/tags/') }}
+        uses: actions/upload-artifact@v3
         with:
-          artifacts: llvm-${{env.LLVM_VERSION}}.tgz
+          name: llvm-arm64
+          path: /tmp/llvm-arm64.tar.gz