diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b4ad35f3facae6d58e36a88a6559e4e98f1a1369..454f843d8cb84a3181232fd7ee068af763ef2dde 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -151,3 +151,67 @@ release:
 
 include:
   - template: Code-Quality.gitlab-ci.yml
+
+
+# MacOS tests
+#   - this job runs on "M1" (arm64) macs
+#   - its possible to run `arch -x86_64 ...`
+#   - `gsed` stuff is Issue #112.
+macos_tests:
+  image: macos-12-xcode-14
+  tags:
+    - saas-macos-medium-m1
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+      when: never
+    - if: $CI_PROJECT_PATH == "gnu-octave/octave-pythonic"
+  stage: test
+  needs: []
+  variables:
+    HOMEBREW_NO_AUTO_UPDATE: 1
+    HOMEBREW_NO_INSTALL_CLEANUP: 1
+    HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK: 1
+  before_script:
+    - sw_vers
+    - pwd
+    - uname -a
+    - uname -m
+    - echo $SHELL
+    # this Python comes from Homebrew
+    - which python
+    - python --version
+    - pip --version
+    # this Python comes from the OS
+    - /usr/bin/python3 --version
+    - /usr/bin/python3 -m pip --version
+    # (and installing Octave updates the Homebrew one)
+    - brew --version
+    - brew install gnu-sed
+    - brew info octave
+    - brew install octave
+  script:
+    - gcc --version
+    - clang --version
+    - octave --version
+    - make help SED=gsed
+    - make CXX=clang CXXFLAGS="-std=c++11" SED=gsed
+    - make check
+    - octave --eval "pkg install -forge doctest"
+    - make doctest
+    - mkdir -p pkg
+    - make O=pkg dist dist-zip
+  artifacts:
+    paths:
+      - src/fntests.log
+    when: on_failure
+
+
+# macOS: one can also use Rosetta to emulate x86_64
+#  - arch -x86_64 uname -m
+#  - arch -x86_64 /usr/bin/python3 --version
+#  - arch -arm64 /usr/bin/python3 --version
+# macOS: installing a specific python
+#  - curl https://www.python.org/ftp/python/3.11.4/python-3.11.4-macos11.pkg --output python.pkg
+#  - sudo installer -pkg python.pkg -target /
+#  - /usr/local/bin/python3 --version
+#  - arch -x86_64 /usr/local/bin/python3 --version