diff --git a/.github/workflows/skip-tests.yml b/.github/workflows/skip-tests.yml
deleted file mode 100644
index 2a3107c5d..000000000
--- a/.github/workflows/skip-tests.yml
+++ /dev/null
@@ -1,101 +0,0 @@
----
-
-# We check that using all --skip options does not error.
-
-name: Skip tests
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-  schedule:
-    # * is a special character in YAML so you have to quote this string
-    # Run at 1:00 every day
-    - cron: 0 1 * * *
-  workflow_dispatch: {}
-
-jobs:
-  build:
-
-    strategy:
-      matrix:
-        python-version: ['3.13']
-        platform: [ubuntu-latest]
-
-    runs-on: ${{ matrix.platform }}
-
-    steps:
-      - uses: actions/checkout@v5
-        with:
-          # See https://github.com/codecov/codecov-action/issues/190.
-          fetch-depth: 2
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@v6
-        with:
-          enable-cache: true
-          cache-dependency-glob: '**/pyproject.toml'
-
-      - name: Set secrets file
-        run: |
-          cp ./vuforia_secrets.env.example ./vuforia_secrets.env
-
-      - name: Run tests
-        run: |
-          uv run --extra=dev pytest \
-            --skip-docker_build_tests \
-            --skip-docker_in_memory \
-            --skip-mock \
-            --skip-real \
-            --capture=no \
-            -vvv \
-            --exitfirst \
-            --cov=src/ \
-            --cov=tests/ \
-            --cov-report=xml \
-            .
-        env:
-          UV_PYTHON: ${{ matrix.python-version }}
-
-      - name: Show coverage file
-        run: |
-          # Sometimes we have been sure that we have 100% coverage, but codecov
-          # says otherwise.
-          #
-          # We show the coverage file here to help with debugging.
-          # https://github.com/VWS-Python/vws-python-mock/issues/708
-          cat ./coverage.xml
-
-      # We run this job on every PR, on every merge to main, and nightly.
-      # This causes us to hit an issue with Codecov.
-      #
-      # We see "Too many uploads to this commit.".
-      # See https://community.codecov.io/t/too-many-uploads-to-this-commit/2574.
-      #
-      # To work around this, we do not upload coverage data on scheduled runs.
-      # We print the event name here to help with debugging.
-      - name: Show event name
-        run: |
-          echo ${{ github.event_name }}
-
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
-        with:
-          fail_ci_if_error: true
-          # See https://community.codecov.com/t/upload-issues-unable-to-locate-build-via-github-actions-api/3954
-          # which tells us to use the token to avoid errors.
-          token: ${{ secrets.CODECOV_TOKEN }}
-        if: ${{ github.event_name == 'pull_request' || github.event_name == 'push' }}
-
-  completion-skip-tests:
-    needs: build
-    runs-on: ubuntu-latest
-    if: always()  # Run even if one matrix job fails
-    steps:
-      - name: Check matrix job status
-        run: |-
-          if ! ${{ needs.build.result == 'success' }}; then
-            echo "One or more matrix jobs failed"
-            exit 1
-          fi
diff --git a/.github/workflows/ci.yml b/.github/workflows/test.yml
similarity index 61%
rename from .github/workflows/ci.yml
rename to .github/workflows/test.yml
index 676ccd6e4..1042c73d2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/test.yml
@@ -1,6 +1,5 @@
 ---
-
-name: CI
+name: Test
 
 on:
   push:
@@ -14,15 +13,13 @@ on:
   workflow_dispatch: {}
 
 # We share Vuforia credentials and therefore Vuforia databases across
-# workflows.
-# We therefore want to run only one workflow at a time.
+# workflows. We therefore want to run only one workflow at a time.
 concurrency: vuforia_credentials
 
 jobs:
-  build:
-
+  # CI tests with matrix
+  ci-tests:
     runs-on: ubuntu-latest
-
     strategy:
       fail-fast: false
       matrix:
@@ -120,9 +117,6 @@ jobs:
 
     steps:
       - uses: actions/checkout@v5
-        with:
-          # See https://github.com/codecov/codecov-action/issues/190.
-          fetch-depth: 2
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
@@ -158,54 +152,189 @@ jobs:
 
       - name: Run tests
         run: |
-          uv run --extra=dev pytest \
-            -s \
-            -vvv \
-            --showlocals \
-            --exitfirst \
-            --cov=src/ \
-            --cov=tests/ \
-            --cov-report=xml \
-            ${{ matrix.ci_pattern }}
+          uv run --extra=dev \
+              coverage run \
+              --parallel-mode \
+              --source=src/ \
+              --source=tests/ \
+              -m pytest \
+                  -s \
+                  -vvv \
+                  --showlocals \
+                  --exitfirst \
+                  ${{ matrix.ci_pattern }}
         env:
           UV_PYTHON: ${{ matrix.python-version }}
 
-      - name: Show coverage file
+      - name: Sanitize pattern for artifact name
+        id: sanitize
+        run: |
+          SANITIZED_PATTERN=$(echo "${{ matrix.ci_pattern }}" | sed 's/::/-/g' | sed 's/:/-/g' | sed 's|/|-|g')
+          echo "name=coverage-data-ci-${{ matrix.python-version }}-${SANITIZED_PATTERN}" >> "$GITHUB_OUTPUT"
+
+      - name: Upload coverage data
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.sanitize.outputs.name }}
+          path: .coverage.*
+          include-hidden-files: true
+          if-no-files-found: error
+
+  # Skip tests
+  skip-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.13']
+        platform: [ubuntu-latest]
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
+          cache-dependency-glob: '**/pyproject.toml'
+
+      - name: Set secrets file
+        run: |
+          cp ./vuforia_secrets.env.example ./vuforia_secrets.env
+
+      - name: Run tests
         run: |
-          # Sometimes we have been sure that we have 100% coverage, but codecov
-          # says otherwise.
+          uv run --extra=dev \
+            coverage run \
+            --parallel-mode \
+            --source=src/ \
+            --source=tests/ \
+            -m pytest \
+                --skip-docker_build_tests \
+                --skip-docker_in_memory \
+                --skip-mock \
+                --skip-real \
+                --capture=no \
+                -vvv \
+                --exitfirst \
+                .
+        env:
+          UV_PYTHON: ${{ matrix.python-version }}
+
+      - name: Upload coverage data
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-data-skip-tests-${{ matrix.python-version }}
+          path: .coverage.*
+          include-hidden-files: true
+          if-no-files-found: error
+
+  # Windows tests
+  windows-tests:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        python-version: ['3.13']
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
+          cache-dependency-glob: '**/pyproject.toml'
+
+      - name: Set secrets file
+        run: |
+          cp ./vuforia_secrets.env.example ./vuforia_secrets.env
+
+      - name: Run tests
+        shell: bash
+        run: |
+          # We use pytest-xdist to make this run much faster.
+          # The downside is that we cannot use -s / --capture=no.
+          #
+          # We use coverage to collect coverage data but we currently
+          # do not upload / use it because combining Windows and Linux
+          # coverage is challenging.
           #
-          # We show the coverage file here to help with debugging.
-          # https://github.com/VWS-Python/vws-python-mock/issues/708
-          cat ./coverage.xml
-
-      # We run this job on every PR, on every merge to main, and nightly.
-      # This causes us to hit an issue with Codecov.
-      #
-      # We see "Too many uploads to this commit.".
-      # See https://community.codecov.io/t/too-many-uploads-to-this-commit/2574.
-      #
-      # To work around this, we do not upload coverage data on scheduled runs.
-      # We print the event name here to help with debugging.
-      - name: Show event name
+          # We therefore have a few ``# pragma: no cover`` statements.
+          uv run --extra=dev \
+            coverage run \
+            --parallel-mode \
+            --source=src/ \
+            --source=tests/ \
+            -m pytest \
+                --skip-real \
+                -vvv \
+                --exitfirst \
+                -n auto \
+                .
+        env:
+          UV_PYTHON: ${{ matrix.python-version }}
+
+  coverage:
+    name: Combine & check coverage
+    needs: [ci-tests, skip-tests, windows-tests]
+    if: always()
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
+          cache-dependency-glob: '**/pyproject.toml'
+
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: coverage-data-*
+          merge-multiple: true
+
+      - name: Require 100% Coverage
+        id: coverage
         run: |
-          echo ${{ github.event_name }}
+          uv tool install 'coverage[toml]'
 
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+          coverage combine
+          coverage html --skip-covered --skip-empty
+
+          # Report and write to summary.
+          coverage report --format=markdown >> "$GITHUB_STEP_SUMMARY"
+
+          # Report again and fail if under 100%.
+          coverage report --fail-under=100
+
+      - name: Upload HTML report if check failed
+        uses: actions/upload-artifact@v4
         with:
-          fail_ci_if_error: true
-          token: ${{ secrets.CODECOV_TOKEN }}
-        if: ${{ github.event_name == 'pull_request' || github.event_name == 'push' }}
+          name: html-report
+          path: htmlcov
+        if: ${{ failure() }}
 
-  completion-ci:
-    needs: build
+  # Final completion check
+  completion:
+    needs: [ci-tests, skip-tests, windows-tests, coverage]
     runs-on: ubuntu-latest
-    if: always()  # Run even if one matrix job fails
+    if: always()
     steps:
-      - name: Check matrix job status
+      - name: Check all jobs status
         run: |-
-          if ! ${{ needs.build.result == 'success' }}; then
-            echo "One or more matrix jobs failed"
+          if ! ${{ needs.ci-tests.result == 'success' }}; then
+            echo "CI tests failed"
+            exit 1
+          fi
+          if ! ${{ needs.skip-tests.result == 'success' }}; then
+            echo "Skip tests failed"
+            exit 1
+          fi
+          if ! ${{ needs.windows-tests.result == 'success' }}; then
+            echo "Windows tests failed"
+            exit 1
+          fi
+          if ! ${{ needs.coverage.result == 'success' }}; then
+            echo "Coverage check failed"
             exit 1
           fi
diff --git a/.github/workflows/windows-ci.yml b/.github/workflows/windows-ci.yml
deleted file mode 100644
index 3dd3ff0a2..000000000
--- a/.github/workflows/windows-ci.yml
+++ /dev/null
@@ -1,90 +0,0 @@
----
-
-name: Windows CI
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-  schedule:
-    # * is a special character in YAML so you have to quote this string
-    # Run at 1:00 every day
-    - cron: 0 1 * * *
-  workflow_dispatch: {}
-
-jobs:
-  build:
-
-    strategy:
-      matrix:
-        python-version: ['3.13']
-        platform: [windows-latest]
-
-    runs-on: ${{ matrix.platform }}
-
-    steps:
-      - uses: actions/checkout@v5
-        with:
-          # See https://github.com/codecov/codecov-action/issues/190.
-          fetch-depth: 2
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@v6
-        with:
-          enable-cache: true
-          cache-dependency-glob: '**/pyproject.toml'
-
-      - name: Set secrets file
-        run: |
-          cp ./vuforia_secrets.env.example ./vuforia_secrets.env
-
-      - name: Run tests
-        run: |
-          # We use pytest-xdist to make this run much faster.
-          # The downside is that we cannot use -s / --capture=no.
-          uv run --extra=dev pytest --skip-real -vvv --exitfirst -n auto --cov=src/ --cov=tests/ --cov-report=xml .
-        env:
-          UV_PYTHON: ${{ matrix.python-version }}
-
-      - name: Show coverage file
-        run: |
-          # Sometimes we have been sure that we have 100% coverage, but codecov
-          # says otherwise.
-          #
-          # We show the coverage file here to help with debugging.
-          # https://github.com/VWS-Python/vws-python-mock/issues/708
-          cat ./coverage.xml
-
-      # We run this job on every PR, on every merge to main, and nightly.
-      # This causes us to hit an issue with Codecov.
-      #
-      # We see "Too many uploads to this commit.".
-      # See https://community.codecov.io/t/too-many-uploads-to-this-commit/2574.
-      #
-      # To work around this, we do not upload coverage data on scheduled runs.
-      # We print the event name here to help with debugging.
-      - name: Show event name
-        run: |
-          echo ${{ github.event_name }}
-
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
-        with:
-          fail_ci_if_error: true
-          # See https://community.codecov.com/t/upload-issues-unable-to-locate-build-via-github-actions-api/3954
-          # which tells us to use the token to avoid errors.
-          token: ${{ secrets.CODECOV_TOKEN }}
-        if: ${{ github.event_name == 'pull_request' || github.event_name == 'push' }}
-
-  completion-windows-ci:
-    needs: build
-    runs-on: ubuntu-latest
-    if: always()  # Run even if one matrix job fails
-    steps:
-      - name: Check matrix job status
-        run: |-
-          if ! ${{ needs.build.result == 'success' }}; then
-            echo "One or more matrix jobs failed"
-            exit 1
-          fi
diff --git a/README.rst b/README.rst
index c2a566463..98004f17c 100644
--- a/README.rst
+++ b/README.rst
@@ -1,4 +1,4 @@
-|Build Status| |codecov| |PyPI|
+|Build Status| |PyPI|
 
 VWS Mock
 ========
@@ -56,8 +56,6 @@ This includes details on how to use the mock, options, and details of the differ
 
 .. |Build Status| image:: https://github.com/VWS-Python/vws-python-mock/actions/workflows/ci.yml/badge.svg?branch=main
    :target: https://github.com/VWS-Python/vws-python-mock/actions
-.. |codecov| image:: https://codecov.io/gh/VWS-Python/vws-python-mock/branch/main/graph/badge.svg
-   :target: https://codecov.io/gh/VWS-Python/vws-python-mock
 .. |PyPI| image:: https://badge.fury.io/py/VWS-Python-Mock.svg
     :target: https://badge.fury.io/py/VWS-Python-Mock
 .. |minimum-python-version| replace:: 3.13
diff --git a/ci/test_custom_linters.py b/ci/test_custom_linters.py
index 8de79cbb8..f740f39a0 100644
--- a/ci/test_custom_linters.py
+++ b/ci/test_custom_linters.py
@@ -18,9 +18,9 @@ def _ci_patterns(*, repository_root: Path) -> set[str]:
     """
     Return the CI patterns given in the CI configuration file.
     """
-    ci_file = repository_root / ".github" / "workflows" / "ci.yml"
+    ci_file = repository_root / ".github" / "workflows" / "test.yml"
     github_workflow_config = yaml.safe_load(stream=ci_file.read_text())
-    matrix = github_workflow_config["jobs"]["build"]["strategy"]["matrix"]
+    matrix = github_workflow_config["jobs"]["ci-tests"]["strategy"]["matrix"]
     ci_pattern_list = matrix["ci_pattern"]
     ci_patterns = set(ci_pattern_list)
     assert len(ci_pattern_list) == len(ci_patterns)
diff --git a/codecov.yaml b/codecov.yaml
deleted file mode 100644
index 5c35baac9..000000000
--- a/codecov.yaml
+++ /dev/null
@@ -1,7 +0,0 @@
----
-coverage:
-  status:
-    patch:
-      default:
-        # Require 100% test coverage.
-        target: 100%
diff --git a/pyproject.toml b/pyproject.toml
index c2da135d8..051535a80 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,6 +52,7 @@ optional-dependencies.dev = [
     "actionlint-py==1.7.7.23",
     "check-manifest==0.50",
     "check-wheel-contents==0.6.3",
+    "coverage==7.10.7",
     "deptry==0.23.1",
     "dirty-equals==0.10.0",
     "doc8==1.1.1",
@@ -72,7 +73,6 @@ optional-dependencies.dev = [
     "pyright==1.1.406",
     "pyroma==5.0",
     "pytest==8.4.2",
-    "pytest-cov==7.0.0",
     "pytest-retry==1.7.0",
     "pytest-xdist==3.8.0",
     "python-dotenv==1.1.1",
@@ -313,7 +313,6 @@ ignore = [
     "Makefile",
     "ci",
     "ci/**",
-    "codecov.yaml",
     "docs",
     "docs/**",
     ".git_archival.txt",
diff --git a/tests/mock_vws/test_docker.py b/tests/mock_vws/test_docker.py
index 56c5fc6ce..d3d18c16a 100644
--- a/tests/mock_vws/test_docker.py
+++ b/tests/mock_vws/test_docker.py
@@ -65,7 +65,9 @@ def fixture_custom_bridge_network() -> Iterator[Network]:
     name = "test-vws-bridge-" + uuid.uuid4().hex
     try:
         network = client.networks.create(name=name, driver="bridge")
-    except NotFound:
+    # We skip coverage here because combining Windows and Linux coverage
+    # is challenging.
+    except NotFound:  # pragma: no cover
         # On Windows the "bridge" network driver is not available and we use
         # the "nat" driver instead.
         network = client.networks.create(name=name, driver="nat")
@@ -116,15 +118,15 @@ def test_build_and_run(
             target="target-manager",
             rm=True,
         )
-    except BuildError as exc:
+    # We skip coverage here because combining Windows and Linux coverage
+    # is challenging.
+    except BuildError as exc:  # pragma: no cover
         full_log = "\n".join(
             [item["stream"] for item in exc.build_log if "stream" in item],
         )
         # If this assertion fails, it may be useful to look at the other
         # properties of ``exc``.
-        if (
-            "no matching manifest for windows/amd64" not in exc.msg
-        ):  # pragma: no cover
+        if "no matching manifest for windows/amd64" not in exc.msg:
             raise AssertionError(full_log) from exc
         pytest.skip(
             reason="We do not currently support using Windows containers."