diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 5d2385c04bc..72ac5cb9691 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -23,6 +23,8 @@ jobs:
     runs-on: macos-15
     env:
       PYTHONWARNINGS: always
+      # renovate: datasource=github-tags depName=codecov/codecov-action
+      CODECOV_ACTION_VERSION: "5a1091511ad55cbe89839c7260b706298ca349f7" # v5.5.1
     steps:
       - name: Info
         run: |
@@ -50,6 +52,16 @@ jobs:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+          repository: codecov/codecov-action
+          ref: ${{ env.CODECOV_ACTION_VERSION }}
+          path: codecov-action
+          sparse-checkout: |
+            dist/codecov.sh
+          sparse-checkout-cone-mode: false
+
       - name: Get current date cache key segment
         id: date
         # Year and week of year so cache key changes weekly
@@ -57,8 +69,11 @@ jobs:
       - name: Prepare Conda environment file
         env:
           test_dependencies: |
+            gnupg
             ipython
             pytest
+            coverage
+            pytest-cov
             pytest-github-actions-annotate-failures
             pytest-timeout
             pytest-xdist
@@ -109,10 +124,15 @@ jobs:
         run: |
           PYTHONPATH="$(grass --config python_path):${PYTHONPATH}"
           LD_LIBRARY_PATH="$(grass --config path)/lib:${LD_LIBRARY_PATH}"
+          INITIAL_GISBASE="$(grass --config path)"
+          INITIAL_PWD="${PWD}"
           export PYTHONPATH
           export LD_LIBRARY_PATH
+          export INITIAL_GISBASE
+          export INITIAL_PWD
           pytest \
             @.github/workflows/pytest_args_ci.txt \
+            @.github/workflows/pytest_args_cov.txt \
             @.github/workflows/pytest_args_not_parallel.txt \
             --junitxml=pytest.needs_solo_run.junit.xml \
             -k 'not testsuite'
@@ -126,7 +146,6 @@ jobs:
           pytest \
             @.github/workflows/pytest_args_gunittest.txt \
             --junitxml=pytest.gunittest.junit.xml
-
       - name: Upload test results to Codecov
         if: ${{ !cancelled() }}
         uses: codecov/test-results-action@47f89e9acb64b76debcd5ea40642d25a4adced9f # v1.1.1
@@ -134,6 +153,99 @@ jobs:
           exclude: gui
           flags: macos-pytest-python
           token: ${{ secrets.CODECOV_TOKEN }}
+      - name: Fix non-standard installed script paths in coverage data
+        shell: micromamba-shell {0}
+        run: |
+          PYTHONPATH="$(grass --config python_path):${PYTHONPATH}"
+          LD_LIBRARY_PATH="$(grass --config path)/lib:${LD_LIBRARY_PATH}"
+          INITIAL_GISBASE="$(grass --config path)"
+          INITIAL_PWD="${PWD}"
+          export PYTHONPATH
+          export LD_LIBRARY_PATH
+          export INITIAL_GISBASE
+          export INITIAL_PWD
+          python utils/coverage_mapper.py
+          coverage combine
+          coverage html
+          coverage json
+      - name: Make python-only code coverage test report available
+        if: ${{ !cancelled() }}
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: >-
+            python-codecoverage-report-macos
+          path: coverage_html_report
+          retention-days: 1
+# yamllint disable rule:line-length
+      - name: Set fork
+        shell: bash 
+        run: |
+          CC_FORK="false"
+          if [ -n "$GITHUB_EVENT_PULL_REQUEST_HEAD_REPO_FULL_NAME" ] && [ "$GITHUB_EVENT_PULL_REQUEST_HEAD_REPO_FULL_NAME" != "$GITHUB_REPOSITORY" ];
+          then
+            echo -e "\033[0;32m==>\033[0m Fork detected"
+            CC_FORK="true"
+          fi
+          echo "CC_FORK=$CC_FORK" >> "$GITHUB_ENV"
+        env:
+          GITHUB_EVENT_PULL_REQUEST_HEAD_LABEL: ${{ github.event.pull_request.head.label }}
+          GITHUB_EVENT_PULL_REQUEST_HEAD_REPO_FULL_NAME: ${{ github.event.pull_request.head.repo.full_name }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+# yamllint enable rule:line-length
+      - name: Override branch for forks
+        shell: bash
+        run: |
+          if [ -z "$CC_BRANCH" ] && [ -z "$CC_TOKEN" ] && [ "$CC_FORK" == 'true' ]
+          then
+            echo -e "\033[0;32m==>\033[0m Fork detected, setting branch to $GITHUB_EVENT_PULL_REQUEST_HEAD_LABEL"
+            TOKENLESS="$GITHUB_EVENT_PULL_REQUEST_HEAD_LABEL"
+            CC_BRANCH="$GITHUB_EVENT_PULL_REQUEST_HEAD_LABEL"
+            echo "TOKENLESS=$TOKENLESS" >> "$GITHUB_ENV"
+          fi
+
+          echo "CC_BRANCH=$CC_BRANCH" >> "$GITHUB_ENV"
+        env:
+          # CC_BRANCH: ${{ inputs.override_branch }}
+          GITHUB_EVENT_PULL_REQUEST_HEAD_LABEL: ${{ github.event.pull_request.head.label }}
+          GITHUB_EVENT_PULL_REQUEST_HEAD_REPO_FULL_NAME: ${{ github.event.pull_request.head.repo.full_name }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+      - name: Override commits and pr for pull requests
+        shell: bash
+        run: |
+          if [ -z "$CC_SHA" ];
+          then
+            CC_SHA="$GITHUB_EVENT_PULL_REQUEST_HEAD_SHA"
+          fi
+          if [ -z "$CC_PR" ] && [ "$CC_FORK" == 'true' ];
+          then
+            CC_PR="$GITHUB_EVENT_NUMBER"
+          fi
+
+          echo "CC_SHA=$CC_SHA" >> "$GITHUB_ENV"
+          echo "CC_PR=$CC_PR" >> "$GITHUB_ENV"
+        env:
+          # CC_PR: ${{ inputs.override_pr }}
+          # CC_SHA: ${{ inputs.override_commit }}
+          GITHUB_EVENT_NAME: ${{ github.event_name }}
+          GITHUB_EVENT_NUMBER: ${{ github.event.number }}
+          GITHUB_EVENT_PULL_REQUEST_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+      - name: Upload coverage reports to Codecov
+        shell: micromamba-shell {0}
+        run: |
+          ./codecov-action/dist/codecov.sh
+          # Other approach
+          # curl -Os https://cli.codecov.io/latest/macos/codecov
+          # sudo chmod +x codecov
+          # ./codecov --help || true
+          # ./codecov --version || true
+          # ./codecov --verbose upload-process \
+          #   -t ${{ secrets.CODECOV_TOKEN }} \
+          #   --flag pytest-macos \
+          #   -f pytest-macos
+        env:
+          CC_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+          CC_FLAGS: pytest-macos
+          CC_NAME: pytest-macos
 
       - name: Cache GRASS Sample Dataset
         id: cached-data