diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 06312a6b339..6df168cbc5a 100644
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -303,6 +303,61 @@ jobs:
       - name: Downstream run
         run: ./build-downstream/bin/ShowActsVersion
 
+  linux_acts_scalar:
+    runs-on: ubuntu-latest
+    container: ghcr.io/acts-project/ubuntu2404:58
+    env:
+      INSTALL_DIR: ${{ github.workspace }}/install
+      ACTS_LOG_FAILURE_THRESHOLD: WARNING
+    steps:
+      - name: Install git lfs
+        run: apt-get update && apt-get install -y git-lfs
+
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+          lfs: true
+
+      - name: Restore ccache
+        uses: actions/cache/restore@v4
+        id: ccache-restore
+        with:
+          path: ${{ github.workspace }}/ccache
+          key: ${{ runner.os  }}-ccache-linux_ubuntu_${{ env.CCACHE_KEY_SUFFIX }}_${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os  }}-ccache-linux_ubuntu_${{ env.CCACHE_KEY_SUFFIX }}_
+
+      - name: Configure
+        # setting CMAKE_CXX_STANDARD=20 is a workaround for a bug in the
+        # dd4hep CMake configuration that gets triggered on recent CMake
+        # versions
+        # Need to set git user & email for patching to work (GeoModel plugin)
+        run: >
+          git config --global user.name 'CI' &&
+          git config --global user.email '<>' &&
+          ccache -z &&
+          cmake -B build -S .
+          -DCMAKE_CXX_FLAGS="-Wno-narrowing"
+          -DACTS_CUSTOM_SCALARTYPE=float
+
+      - name: Build
+        run: cmake --build build
+
+      - name: ccache stats
+        run: ccache -s
+
+      - name: Save ccache
+        uses: actions/cache/save@v4
+        if: always()
+        with:
+          path: ${{ github.workspace }}/ccache
+          key: ${{ steps.ccache-restore.outputs.cache-primary-key }}
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: acts-linux-ubuntu
+          path: build.tar.gz
+
   macos:
     runs-on: macos-14
     env: