Add CI workflow for testing on M1 Mac

.github/workflows/main.yml

@@ -0,0 +1,43 @@
+name: CI Test
+
+on:
+  pull_request:
+    branches: [ "main" ]
+  push:
+    branches: [ "main" ]
+
+jobs:
+  test-apple-silicon:
+    name: Test on M1 Mac
+    runs-on: macos-14
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      - name: Install Build Dependencies
+        run: |
+          pip install --upgrade pip setuptools wheel cmake pybind11
+
+      - name: Build Backend (CMake)
+        run: |
+          mkdir build
+          cd build
+          cmake -Dpybind11_DIR=$(python -m pybind11 --cmakedir) ..
+          cmake --build .
+
+      - name: Install Library
+        # Installs your library in editable mode
+        run: pip install -e .
+
+      - name: Install Test Dependencies
+        run: pip install pytest
+
+      - name: Run Tests
+        run: |
+          pytest tests/

CMakeLists.txt

@@ -18,6 +18,18 @@ pybind11_add_module(
     cpp/src/metal_utils.mm
 )
 
+if(APPLE)
+    find_library(METAL_LIB Metal)
+    find_library(MPS_LIB MetalPerformanceShaders)
+    find_library(FOUNDATION_LIB Foundation)
+
+    target_link_libraries(_backend PRIVATE
+        ${METAL_LIB}
+        ${MPS_LIB}
+        ${FOUNDATION_LIB}
+    )
+endif()
+
 # Put output in python package
 set_target_properties(_backend PROPERTIES
     LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/py/Forge