diff --git a/.github/workflows/caches.yml b/.github/workflows/caches.yml
index f0cab304..64642fdd 100644
--- a/.github/workflows/caches.yml
+++ b/.github/workflows/caches.yml
@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
 
   schedule:
-    - cron: 0 7 1 * *
+    - cron: 0 7 * * 0
 
 jobs:
   delete:
diff --git a/.github/workflows/cd.docker.yml b/.github/workflows/cd.docker.yml
index f6326e3e..72ee90bf 100644
--- a/.github/workflows/cd.docker.yml
+++ b/.github/workflows/cd.docker.yml
@@ -1,4 +1,4 @@
-name: continuous delivery (docker)
+name: Continuous delivery (Docker)
 
 on:
   workflow_dispatch:
diff --git a/.github/workflows/cd.vercel.yml b/.github/workflows/cd.vercel.yml
index 612b9a3f..3bfeeea6 100644
--- a/.github/workflows/cd.vercel.yml
+++ b/.github/workflows/cd.vercel.yml
@@ -1,4 +1,4 @@
-name: continuous delivery (vercel)
+name: Continuous delivery (Vercel)
 
 on:
   workflow_dispatch:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 411dcd2a..0eebdd0e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,16 +56,21 @@ jobs:
         with: { fetch-depth: 0 }
 
       - name: Set up Node.js environment
+        id: app
         uses: actions/setup-node@v3
         with: { node-version: 16, cache: npm }
       - name: Install application dependencies if needed
         run: npm ci --ignore-scripts --include=dev
+        env: { FONTAWESOME_TOKEN: '${{ secrets.FONTAWESOME_TOKEN }}' }
+        if: steps.app.outputs.cache-hit != 'true'
 
       - name: Set up Node.js environment
+        id: tools
         uses: actions/setup-node@v3
         with: { node-version: 16, cache: npm, cache-dependency-path: tools/package-lock.json }
       - name: Install tooling dependencies if needed
         run: ./Taskfile tools npm ci
+        if: steps.tools.outputs.cache-hit != 'true'
 
       # https://github.com/actions/setup-node/blob/main/docs/advanced-usage.md#caching-packages-data
       # - name: Cache tooling dependencies
diff --git a/.github/workflows/runs.yml b/.github/workflows/runs.yml
new file mode 100644
index 00000000..ac7cd5a9
--- /dev/null
+++ b/.github/workflows/runs.yml
@@ -0,0 +1,55 @@
+name: Workflow invalidation
+
+on:
+  workflow_dispatch:
+    inputs:
+      pattern:
+        description: The name of workflow to clean.
+        type: choice
+        options:
+          - Cache invalidation
+          - Continuous integration
+          - Continuous delivery (Vercel)
+          - Continuous delivery (Docker)
+          # - Dependabot at weekends
+          # - Documentation delivery
+          # - Tools validation
+          - Workflow invalidation
+        default: Workflow invalidation
+        required: true
+      dry_run:
+        description: Only log actions, do not perform any delete operations.
+        type: boolean
+        required: false
+
+jobs:
+  delete:
+    name: Deleting
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Delete workflow runs
+        uses: Mattraks/delete-workflow-runs@v2
+        with:
+          token: ${{ github.token }}
+          repository: ${{ github.repository }}
+          delete_workflow_pattern: ${{ github.event.inputs.pattern }}
+          dry_run: ${{ fromJSON('["", "true"]')[github.event.inputs.dry_run == 'true'] }}
+          retain_days: 0
+          keep_minimum_runs: 0
+
+  notify:
+    name: Notifying
+    needs: [ delete ]
+    runs-on: ubuntu-latest
+    if: failure() || success()
+
+    steps:
+      - name: Send Slack notification
+        uses: rtCamp/action-slack-notify@v2
+        env:
+          SLACK_COLOR: ${{ contains(needs.*.result, 'failure') && 'failure' || 'success' }}
+          SLACK_ICON: https://github.com/github.png?size=64
+          SLACK_TITLE: '🗑️ ${{ github.repository }}: ${{ github.workflow }}'
+          SLACK_USERNAME: GitHub Actions
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}