diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1e9a16d..bde8ef3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,13 +7,21 @@ on:
     branches: [ master ]
 
 env:
+  # maybe pull into matrix?
   BUILD_TYPE: Debug
 
 jobs:
   linux:
     timeout-minutes: 10
 
-    runs-on: ubuntu-latest
+    runs-on: ${{matrix.os}}
+    name:  ${{matrix.type}} on ${{matrix.os}}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        type: ['', 'asan']
+        os: ['ubuntu-latest', 'ubuntu-24.04-arm']
 
     steps:
     - uses: actions/checkout@v4
@@ -21,39 +29,15 @@ jobs:
         submodules: recursive
 
     - name: Install Dependencies
-      run: sudo apt update && sudo apt -y install libsodium-dev cmake libx11-dev libxext-dev libxrandr-dev 
+      run: sudo apt update && sudo apt -y install libsodium-dev cmake libx11-dev libxext-dev libxrandr-dev
 
     - name: ccache
       uses: hendrikmuhs/ccache-action@v1.2
       with:
-        key: ${{github.event.repository.name}}-${{github.job}}
+        key: ${{github.event.repository.name}}-${{github.job}}-${{matrix.os}}-${{matrix.type}}
 
     - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
-
-    - name: Build
-      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4 -t tomato
-
-  linux-arm:
-    timeout-minutes: 10
-
-    runs-on: ubuntu-24.04-arm
-
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: recursive
-
-    - name: Install Dependencies
-      run: sudo apt update && sudo apt -y install libsodium-dev cmake libx11-dev libxext-dev libxrandr-dev 
-
-    - name: ccache
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        key: ${{github.event.repository.name}}-${{github.job}}
-
-    - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DTOMATO_ASAN=${{matrix.type == 'asan' && 'ON' || 'OFF'}}
 
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4 -t tomato