I would rather be playing Factorio.

.github/workflows/do-not-merge-check.yml

@@ -0,0 +1,20 @@
+on:
+  label:
+    types: [created, deleted, edited]
+
+jobs:
+  do-not-merge-check:
+    name: 🚫🔒 Do Not Merge Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: 📖🔍 Checkout Repository Code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+
+      - name: 🔍🚫 Check for "Do Not Merge" Label
+        run: |
+          if [[ "${{ github.event.label.name }}" == "Do Not Merge" ]]; then
+            echo "This PR has the 'Do Not Merge' label. Exiting."
+            exit 1
+          fi