diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..65b0722
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,49 @@
+name: Build Merian
+
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+  build:
+    name: Build ${{ matrix.buildtype }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        buildtype: [debugoptimized, release]
+        meson_version: ["1.5.1"]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+      - name: Install Vulkan SDK
+        uses: humbletim/setup-vulkan-sdk@v1.2.0
+        with:
+          vulkan-query-version: 1.3.290.0
+          vulkan-components: Vulkan-Headers, Vulkan-Loader
+          vulkan-use-cache: true
+      - name: Install dependencies
+        run: python -m pip install meson==${{ matrix.meson_version }} ninja
+      - name: Prepare MSVC
+        uses: ilammy/msvc-dev-cmd@v1
+        if: matrix.os == 'windows-latest'
+      - name: Install dependencies for Linux
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          sudo apt-get -y install \
+            libxkbcommon-dev \
+            xorg-dev
+      - name: Setup Project
+        run: meson setup build --buildtype=${{ matrix.buildtype }}
+      - name: Compile Project
+        run: meson compile -C build
+      # - name: Run Tests
+      #   run: meson test -C build -v
+      # - name: Upload Test Log
+      #   uses: actions/upload-artifact@v4
+      #   if: failure()
+      #   with:
+      #     name: ${{ matrix.os }}_Meson_Testlog
+      #     path: build/meson-logs/testlog.txt
diff --git a/scripts/compile_shader.py b/scripts/compile_shader.py
index d40705e..a4a3363 100644
--- a/scripts/compile_shader.py
+++ b/scripts/compile_shader.py
@@ -130,7 +130,7 @@ def main():
             print(f"fixup depfile {depfile_path}")
         with open(depfile_path, "r") as f:
             depfile = f.read()
-        depfile = re.sub("^(.*):", args.implementation_path.name + ":", depfile)
+        depfile = re.sub("^(.*):(?![\\\\/])", args.implementation_path.name + ":", depfile)
         with open(depfile_path, "w") as f:
             f.write(depfile)
 
diff --git a/src/merian/vk/shader/shader_hotreloader.cpp b/src/merian/vk/shader/shader_hotreloader.cpp
index d20c607..783a158 100644
--- a/src/merian/vk/shader/shader_hotreloader.cpp
+++ b/src/merian/vk/shader/shader_hotreloader.cpp
@@ -1,5 +1,7 @@
 #include "merian/vk/shader/shader_hotreloader.hpp"
 
+#include <chrono>
+
 namespace merian {
 
 ShaderModuleHandle
@@ -16,8 +18,11 @@ HotReloader::get_shader(const std::filesystem::path& path,
         std::filesystem::last_write_time(*canonical);
 
     if (!shaders.contains(*canonical) ||
-        (clock_cast<std::chrono::file_clock>(std::chrono::system_clock::now() - 200ms) >
-             last_write_time &&
+        // workaround for this not working in older Ubuntu versions
+        // (std::chrono::system_clock::now().time_since_epoch() - 200ms >
+        // last_write_time.time_since_epoch()
+        ((std::chrono::system_clock::now().time_since_epoch() - 200ms) >
+             last_write_time.time_since_epoch() &&
          last_write_time > shaders[*canonical].last_write_time)) {
         // wait additional 200ms, else the write to the file might still be in process.