diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index b307227c920..52b0cd8a808 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -53,7 +53,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r .github/workflows/python_requirements.txt
           pip install -r .github/workflows/optional_requirements.txt
-          pip install pytest pytest-timeout pytest-github-actions-annotate-failures pytest-xdist
+          pip install pytest pytest-timeout pytest-github-actions-annotate-failures pytest-xdist pytest-cov
 
       - name: Create installation directory
         run: |
@@ -70,6 +70,10 @@ jobs:
         run: |
           echo "$HOME/install/bin" >> $GITHUB_PATH
 
+      - name: Print installed versions
+        if: always()
+        run: .github/workflows/print_versions.sh
+
       - name: Test executing of the grass command
         run: .github/workflows/test_simple.sh
 
@@ -86,12 +90,18 @@ jobs:
           export PYTHONPATH=`grass --config python_path`:$PYTHONPATH
           export LD_LIBRARY_PATH=$(grass --config path)/lib:$LD_LIBRARY_PATH
           pytest --verbose --color=yes --durations=0 --durations-min=0.5 \
+            --cov \
             -ra . \
             -m 'needs_solo_run'
 
-      - name: Print installed versions
-        if: always()
-        run: .github/workflows/print_versions.sh
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
+        with:
+          verbose: true
+          flags: pytest-python-${{ matrix.python-version }}
+          name: pytest-python-${{ matrix.python-version }}
+          token: ${{ secrets.CODECOV_TOKEN }}
+
   pytest-success:
     name: pytest Result
     needs:
diff --git a/.gitignore b/.gitignore
index 0db3adb55f5..42fd7650544 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,3 +59,9 @@ html/
 latex/
 lib/*/html/
 lib/*/latex/
+
+# Ignore code coverage files
+*.gcov
+*.gcno
+*.gcda
+.coverage
diff --git a/Makefile b/Makefile
index 497fb7045b3..be8834ecf42 100644
--- a/Makefile
+++ b/Makefile
@@ -115,11 +115,15 @@ cleandistdirs:
 cleanscriptstrings:
 	rm -f locale/scriptstrings/*.c 2>/dev/null
 
-clean: cleandistdirs cleanscriptstrings cleandocs
+clean: cleandistdirs cleanscriptstrings cleandocs code-coverage-clean
 
 libsclean: cleandistdirs
 	$(MAKE) clean-recursive SUBDIRS=$(LIBDIRS)
 
+code-coverage-clean:
+	-find . -type f \( -name "*.gcda" -o -name "*.gcno" -o -name "*.gcov" \) -delete
+	-rm -f .coverage
+
 distclean: clean
 	-rm -f config.cache config.log config.status config.status.$(ARCH) 2>/dev/null
 	-rm -f ChangeLog ChangeLog.bak $(ERRORLOG) grass.pc
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 00000000000..b4b97b01433
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,114 @@
+---
+# When modifying this file, please validate using
+# curl -X POST --data-binary @codecov.yml https://codecov.io/validate
+
+coverage:
+  status:
+    project:
+      default:
+        target: auto # auto compares coverage to the previous base commit
+        informational: true
+    patch:
+      default:
+        informational: true
+
+# Disable PR comments initially, until it is possible to have the information as a job summary
+comment: false
+
+github_checks:
+  # Until more tests are added, disable GitHub checks annotation when added lines aren't covered by tests
+  annotations: false
+
+component_management:
+  individual_components:
+    - component_id: modules_database # this is an identifier that should not be changed
+      name: db # this is a display name, and can be changed freely
+      paths:
+        - db/**
+        - lib/db/**
+        - scripts/db.*/**
+    - component_id: modules_display
+      name: display
+      paths:
+        - display/**
+        - lib/display/**
+        - scripts/d.*/**
+    - component_id: modules_general
+      name: general
+      paths:
+        - general/**
+        - scripts/g.*/**
+    - component_id: gui
+      name: gui
+      paths:
+        - gui/**
+    - component_id: modules_imagery
+      name: imagery
+      paths:
+        - imagery/**
+        - lib/imagery/**
+        - scripts/i.*/**
+    - component_id: man
+      name: man
+      paths:
+        - man/**
+    - component_id: modules_misc
+      name: imagery
+      paths:
+        - misc/**
+        - scripts/m.*/**
+    - component_id: modules_postscript
+      name: ps
+      paths:
+        - ps/**
+    - component_id: modules_raster
+      name: raster
+      paths:
+        - raster/**
+        - lib/raster/**
+        - scripts/r.*/**
+    - component_id: modules_raster3d
+      name: raster3d
+      paths:
+        - raster3d/**
+        - lib/raster3d/**
+        - scripts/r3.*/**
+    - component_id: modules_temporal
+      name: temporal
+      paths:
+        - temporal/**
+        - lib/temporal/**
+        - scripts/t.*/**
+    - component_id: modules_vector
+      name: vector
+      paths:
+        - vector/**
+        - lib/vector/**
+        - scripts/v.*/**
+    - component_id: utils
+      paths:
+        - utils/**
+    - component_id: scripts
+      paths:
+        - scripts/**
+    - component_id: library
+      name: lib
+      paths:
+        - lib/**
+    - component_id: python_pygrass
+      name: pygrass
+      paths:
+        - python/grass/pygrass/**
+    - component_id: python_gunittest
+      name: gunittest
+      paths:
+        - python/grass/gunittest/**
+    - component_id: notebooks
+      name: notebooks (jupyter)
+      paths:
+        - python/grass/jupyter/**
+        - "**/*.ipynb"
+    - component_id: python_library
+      name: python library
+      paths:
+        - python/grass/**