diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index e282e389..403d1257 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -6,33 +6,24 @@ on:
   pull_request:
     branches: [ master ]
 
-env:
-  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
-  BUILD_TYPE: Release
-
 jobs:
   build:
-    # The CMake configure and build commands are platform agnostic and should work equally
-    # well on Windows or Mac.  You can convert this to a matrix build if you need
-    # cross-platform coverage.
-    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      # Don't cancel the macOS build if the Linux build fails, etc.
+      fail-fast: false
+      matrix:
+        os: [ubuntu-18.04, macos-10.15]
 
     steps:
     - uses: actions/checkout@v2
 
-    - name: Configure CMake
-      # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
-      # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+    - name: Linux Build
+      if: runner.os == 'Linux'
+      run: |
+          sudo apt install -y groff 
+          ./build-linux-64.sh
 
-    - name: Build
-      # Build your program with the given configuration
-      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
-
-    - name: Test
-      working-directory: ${{github.workspace}}/build
-      # Execute tests defined by the CMake configuration.  
-      # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
-      run: ctest -C ${{env.BUILD_TYPE}}
-      
+    - name: macOS Build
+      if: runner.os == 'macOS'
+          ./build-osx.sh