diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5af2d674..e31e7e60 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -37,11 +37,6 @@ build_netgen_win64:
         -DUSE_OCC=ON
         -DCMAKE_BUILD_TYPE=Release
     - cmake --build . --target INSTALL --config Release
-  cache:
-    key: "netgen_win64_${CI_BUILD_REF_NAME}"
-    paths:
-      - build/
-      - src/
 
 test_win64:
   <<: *win64
@@ -113,7 +108,59 @@ linux_cleanup:
   script:
     # remove intermediate and old docker images and containers
     - docker rm -f `docker ps --no-trunc -aq`
-    - docker images --no-trunc -aqf "dangling=true" | xargs docker rmi -f
+    - docker images --no-trunc -aqf "dangling=true" | xargs docker rmi -f || true
+  when: always
+  allow_failure: true
+
+############################################
+# MacOSX
+############################################
+
+.template_mac: &mac
+  tags:
+    - mac
+  before_script:
+    - export ROOT_DIR=/tmp/$CI_PIPELINE_ID
+    - export SRC_DIR=$ROOT_DIR/src
+    - export BUILD_DIR=$ROOT_DIR/build
+    - export CMAKE_INSTALL_PREFIX=/tmp/$CI_PIPELINE_ID/install/Netgen.app
+    - export PYTHONPATH=$CMAKE_INSTALL_PREFIX/Contents/Resources/`python3 -c "from distutils.sysconfig import get_python_lib; print(get_python_lib(1,0,''))"`:.
+    - export PATH=$CMAKE_INSTALL_PREFIX/Contents/MacOS:$PATH
+
+mac_build:
+  <<: *mac
+  stage: build
+  script:
+    - git submodule update --init --recursive
+    - rm -rf $BUILD_DIR
+    - mkdir -p $BUILD_DIR
+    - rm -rf $SRC_DIR
+    - mkdir -p $SRC_DIR
+    - cp -a . $SRC_DIR/
+    - cd $BUILD_DIR
+    - >-
+        cmake $SRC_DIR
+        -DCMAKE_INSTALL_PREFIX=$CMAKE_INSTALL_PREFIX
+        -DCMAKE_BUILD_TYPE=Release
+        -DUSE_NATIVE_ARCH=OFF
+        -DUSE_CCACHE=ON
+        -DENABLE_UNIT_TESTS=ON
+        -DCMAKE_OSX_DEPLOYMENT_TARGET=10.9
+        -DCMAKE_OSX_SYSROOT=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
+    - make -j5 install
+
+mac_test:
+  <<: *mac
+  stage: test
+  script:
+    - cd $BUILD_DIR/netgen
+    - ctest . --output-on-failure
+
+mac_cleanup:
+  <<: *mac
+  stage: cleanup
+  script:
+    - rm -rf $ROOT_DIR
   when: always
   allow_failure: true