diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 000000000..c05b5fe93
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1 @@
+/.github/ @thomass-dev @rouk1 @augustebaum
diff --git a/.github/workflows/backend.yml b/.github/workflows/backend.yml
new file mode 100644
index 000000000..bcdb45352
--- /dev/null
+++ b/.github/workflows/backend.yml
@@ -0,0 +1,59 @@
+# THIS
+# IS
+# DOCUMENTATION
+# REUSABLE WORKFLOW
+
+name: Backend
+
+on: [workflow_call]
+
+defaults:
+  run:
+    shell: "bash"
+
+jobs:
+  test-skore:
+    strategy:
+      fail-fast: true
+      matrix:
+        os: ["ubuntu-latest", "windows-latest"]
+        python: ["3.9", "3.10", "3.11", "3.12"]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+          cache: "pip"
+      - name: Setup
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install --upgrade pre-commit
+          python -m pip install --upgrade build
+      - name: Lint
+        working-directory: skore/
+        run: pre-commit run --all-files ruff
+      - name: Build
+        working-directory: skore/
+        run: python -m build
+      - name: Install
+        working-directory: skore/
+        run: wheel=(dist/*.whl); python -m pip install "${wheel}[test]"
+      - name: Test without coverage
+        if: matrix.os != 'ubuntu-latest' ||  matrix.python != '3.12'
+        timeout-minutes: 10
+        working-directory: skore/
+        run: python -m pytest --no-cov src/ tests/
+      - name: Test with coverage
+        if: matrix.os == 'ubuntu-latest' && matrix.python == '3.12'
+        timeout-minutes: 10
+        working-directory: skore/
+        run: |
+          mkdir coverage
+          python -m pytest --junitxml=coverage/coverage.xml --cov=skore src/ tests/ | tee coverage/coverage.txt
+      - name: Upload coverage reports
+        if: matrix.os == 'ubuntu-latest' && matrix.python == '3.12'
+        uses: actions/upload-artifact@v4
+        with:
+          name: backend-coverage
+          path: skore/coverage/
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e3db1d26d..eaed00434 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
               - 'skore/tests/**'
               - 'skore/pyproject.toml'
               - 'skore/requirements*.txt'
-              - '.github/workflows/skore.yml'
+              - '.github/workflows/skore-test.yml'
             skore-ui:
               - 'skore-ui/**'
               - '.github/workflows/skore-ui.yml'
@@ -42,10 +42,9 @@ jobs:
   lint-and-test-skore:
     needs: [lint-all-files, changes]
     if: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main') || (github.event_name == 'pull_request' && needs.changes.outputs.skore == 'true') }}
-    uses: ./.github/workflows/skore.yml
+    uses: ./.github/workflows/skore-test.yml
     permissions:
       contents: read
-      pull-requests: write
 
   lint-and-test-skore-ui:
     needs: [lint-all-files, changes]
@@ -53,7 +52,6 @@ jobs:
     uses: ./.github/workflows/skore-ui.yml
     permissions:
       contents: read
-      pull-requests: write
 
   ci-all-green:
     needs:
diff --git a/.github/workflows/skore-ui.yml b/.github/workflows/frontend.yml
similarity index 78%
rename from .github/workflows/skore-ui.yml
rename to .github/workflows/frontend.yml
index 6f1b63876..57264d394 100644
--- a/.github/workflows/skore-ui.yml
+++ b/.github/workflows/frontend.yml
@@ -1,11 +1,15 @@
-name: Reusable skore-ui workflow
+# THIS
+# IS
+# DOCUMENTATION
+# REUSABLE WORKFLOW
+
+name: Frontend
 
 on: [workflow_call]
 
 defaults:
   run:
     shell: 'bash'
-    working-directory: './skore-ui'
 
 jobs:
   lint-skore-ui:
@@ -18,6 +22,7 @@ jobs:
           cache: 'npm'
           cache-dependency-path: skore-ui/package-lock.json
       - name: Lint skore-ui
+        working-directory: skore-ui/
         run: |
           npm install
           npm run type-check
@@ -27,7 +32,6 @@ jobs:
 
   test-skore-ui:
     runs-on: ubuntu-latest
-    needs: lint-skore-ui
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -36,19 +40,18 @@ jobs:
           cache: 'npm'
           cache-dependency-path: skore-ui/package-lock.json
       - name: Test skore-ui
+        working-directory: skore-ui/
         run: |
           npm install
           npm run test:unit:coverage
-      - name: Report coverage
-        if: always()
-        uses: davelosert/vitest-coverage-report-action@v2
+      - name: Upload coverage reports
+        uses: actions/upload-artifact@v4
         with:
-          working-directory: ./skore-ui
-          pr-number: ${{ github.event.number }}
+          name: frontend-coverage
+          path: skore-ui/coverage/
 
   build-skore-ui:
     runs-on: ubuntu-latest
-    needs: test-skore-ui
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
@@ -57,6 +60,7 @@ jobs:
           cache: 'npm'
           cache-dependency-path: skore-ui/package-lock.json
       - name: Build skore-ui
+        working-directory: skore-ui/
         run: |
           npm install
           npm run build
diff --git a/.github/workflows/add-pr-assignee.yml b/.github/workflows/pr-add-assignee.yml
similarity index 97%
rename from .github/workflows/add-pr-assignee.yml
rename to .github/workflows/pr-add-assignee.yml
index c6570c0aa..6a78b0c45 100644
--- a/.github/workflows/add-pr-assignee.yml
+++ b/.github/workflows/pr-add-assignee.yml
@@ -1,7 +1,7 @@
 name: Add PR assignee
 
 on:
-  pull_request:
+  pull_request_target:
     types: [opened]
 
 jobs:
diff --git a/.github/workflows/pr-display-backend-coverage.yml b/.github/workflows/pr-display-backend-coverage.yml
new file mode 100644
index 000000000..5ad4f529c
--- /dev/null
+++ b/.github/workflows/pr-display-backend-coverage.yml
@@ -0,0 +1,32 @@
+name: send backend coverage
+
+on:
+  workflow_run:
+    workflows: [Reusable skore workflow]
+    types: [completed]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  pull-requests: write
+
+jobs:
+  send-coverage-message:
+    runs-on: ubuntu-latest
+    if: >
+      github.event.workflow_run.event == 'pull_request' &&
+      github.event.workflow_run.conclusion == 'success'
+    steps:
+      - name: Download coverage reports
+        uses: actions/download-artifact@v4
+        with:
+          name: backend-coverage
+          path: coverage/
+      - name: Send
+        uses: MishaKav/pytest-coverage-comment@main
+        with:
+          pytest-coverage-path: coverage/coverage.txt
+          junitxml-path: coverage/coverage.xml
+          title: pytest coverage report
diff --git a/.github/workflows/pr-display-frontend-coverage.yml b/.github/workflows/pr-display-frontend-coverage.yml
new file mode 100644
index 000000000..ab2906ac6
--- /dev/null
+++ b/.github/workflows/pr-display-frontend-coverage.yml
@@ -0,0 +1,5 @@
+      # - name: Report coverage
+      #   uses: davelosert/vitest-coverage-report-action@v2
+      #   with:
+      #     working-directory: ./skore-ui
+      #     pr-number: ${{ github.event.number }}
diff --git a/.github/workflows/lint-pr-title.yml b/.github/workflows/pr-lint-title.yml
similarity index 100%
rename from .github/workflows/lint-pr-title.yml
rename to .github/workflows/pr-lint-title.yml
diff --git a/.github/workflows/pr-serve-documentation.yml b/.github/workflows/pr-serve-documentation.yml
new file mode 100644
index 000000000..e69de29bb
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f1f44d21f..7b32460ba 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,3 +1,7 @@
+# THIS
+# IS
+# DOCUMENTATION
+
 name: Release
 
 on:
diff --git a/.github/workflows/skore.yml b/.github/workflows/skore.yml
deleted file mode 100644
index 24ec97412..000000000
--- a/.github/workflows/skore.yml
+++ /dev/null
@@ -1,68 +0,0 @@
-name: Reusable skore workflow
-
-on: [workflow_call]
-
-defaults:
-  run:
-    shell: "bash"
-    working-directory: "./skore"
-
-jobs:
-  test-skore:
-    strategy:
-      fail-fast: true
-      matrix:
-        os: ["ubuntu-latest", "windows-latest"]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-          cache: "pip"
-      - name:
-        timeout-minutes: 10
-        run: |
-          # Install dependencies
-          python -m pip install --upgrade pip
-          python -m pip install --upgrade pre-commit
-          python -m pip install --upgrade build
-
-          # Lint
-          pre-commit run --all-files ruff
-
-          # Build
-          python -m build
-
-          # Install
-          wheel=(dist/*.whl); python -m pip install "${wheel}[test]"
-
-          # Test
-          python -m pytest --no-cov src/ tests/
-
-  coverage-skore:
-    runs-on: ubuntu-latest
-    if: ${{ github.event_name == 'pull_request' }}
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: 3.12
-          cache: "pip"
-      - name: pytest coverage
-        run: |
-          # Install dependencies
-          python -m pip install --upgrade pip
-          python -m pip install --upgrade pre-commit
-          python -m pip install --upgrade build
-          python -m pip install -e .[test]
-
-          # run coverage
-          python -m pytest --junitxml=coverage.xml --cov=skore src/ tests/ | tee pytest-coverage.txt
-      - name: Pytest coverage comment
-        uses: MishaKav/pytest-coverage-comment@main
-        with:
-          pytest-coverage-path: ./skore/pytest-coverage.txt
-          junitxml-path: ./skore/coverage.xml
-          title: pytest coverage report