diff --git a/.github/workflows/build-deb.yml b/.github/workflows/build-deb.yml
new file mode 100644
index 0000000..f48bae8
--- /dev/null
+++ b/.github/workflows/build-deb.yml
@@ -0,0 +1,67 @@
+name: Build Debian Package (ARM64)
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build-deb:
+    name: Debian package - ${{ matrix.config.name }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - name: standard-rpi5
+            hardware_header: mandeye-standard-rpi5.h
+            cmake_extra: -DMANDEYE_USE_LIBCAMERA=FALSE
+          - name: direct-cm5
+            hardware_header: mandeye-direct-cm5.h
+            cmake_extra: ""
+
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Build Debian package
+        run: |
+          docker run --rm --platform linux/arm64 \
+            -v ${{ github.workspace }}:/workspace \
+            -w /workspace \
+            arm64v8/debian:bookworm \
+            bash -c "
+              set -e
+              apt-get update -qq
+              apt-get install -y -qq --no-install-recommends \
+                build-essential cmake git pkg-config ca-certificates \
+                libserial-dev libgpiod-dev libzmq3-dev libboost-all-dev \
+                libpistache-dev rapidjson-dev nlohmann-json3-dev cppzmq-dev \
+                libcamera-dev libopencv-dev pps-tools
+              update-ca-certificates
+              git config --global --add safe.directory '*'
+              cmake -B build-pkg \
+                -DCMAKE_BUILD_TYPE=Release \
+                -DMANDEYE_HARDWARE_HEADER=${{ matrix.config.hardware_header }} \
+                ${{ matrix.config.cmake_extra }}
+              cmake --build build-pkg -j\$(nproc)
+              cd build-pkg
+              cpack -G DEB
+            "
+
+      - name: Upload Debian package
+        uses: actions/upload-artifact@v4
+        with:
+          name: mandeye-deb-${{ matrix.config.name }}
+          path: build-pkg/*.deb
+          if-no-files-found: error
\ No newline at end of file
diff --git a/code/gpios.h b/code/gpios.h
index 639b28f..998d91f 100644
--- a/code/gpios.h
+++ b/code/gpios.h
@@ -13,6 +13,7 @@ struct gpiod_line;
 
 namespace mandeye
 {
+
 using namespace hardware;
 // forward declaration of cppgpio type that I want to keep inside compliation unit
 
@@ -108,7 +109,8 @@ class GpioClient
 	std::mutex m_lock;
 	std::atomic<bool> m_running{true};
 };
-static std::mutex gpioClientPtrLock;
-static std::shared_ptr<GpioClient> gpioClientPtr;
+
+inline std::mutex gpioClientPtrLock;
+inline std::shared_ptr<GpioClient> gpioClientPtr;
 
 } // namespace mandeye
\ No newline at end of file