diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eaad87d1..052efa13 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,6 +19,12 @@ jobs:
           windows-latest,
           macos-latest,
         ]
+        port_dir: [
+          gigadevice/gd32,
+          nxp/lpc,
+          raspberrypi/rp2xxx,
+          stmicro/stm32,
+        ]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -32,9 +38,8 @@ jobs:
         run: zig build -Doptimize=ReleaseSmall
 
       - name: Unit Test Ports
-        run: |
-          cd port/raspberrypi/rp2xxx
-          zig build test
+        run: zig build test
+        working-directory: port/${{ matrix.port_dir }}
 
       - name: Unit Test Regz
         run: zig build test