diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 579ce3dc4..891f13c8a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,8 +2,11 @@ name: Build
 on: [pull_request]
 jobs:
   build-mac:
-    name: Build Mac UI
-    runs-on: macos-latest
+    name: Mac UI on ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest]
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout
       uses: actions/checkout@v4
@@ -11,15 +14,38 @@ jobs:
       working-directory: OSBindings/Mac
       run: xcodebuild CODE_SIGN_IDENTITY=-
   build-sdl:
-    name: Build SDL UI
-    runs-on: ubuntu-latest
+    name: SDL UI on ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest]
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout
       uses: actions/checkout@v4
     - name: Install dependencies
+      shell: bash
       run: |
-        sudo apt-get --allow-releaseinfo-change update
-        sudo apt-get --fix-missing install gcc-10 libsdl2-dev scons
+        case $RUNNER_OS in
+          Linux)
+            sudo apt-get --allow-releaseinfo-change update
+            sudo apt-get --fix-missing install gcc-10 libsdl2-dev scons
+            ;;
+          macOS)
+            brew install scons sdl2
+            ;;
+        esac
     - name: Make
       working-directory: OSBindings/SDL
-      run: scons -j$(nproc --all)
+      shell: bash
+      run: |
+        case $RUNNER_OS in
+          Linux)
+            jobs=$(nproc --all)
+            ;;
+          macOS)
+            jobs=$(sysctl -n hw.activecpu)
+            ;;
+          *)
+            jobs=1
+        esac
+        scons -j"$jobs"