diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 7201dbc..2a68040 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -32,6 +32,7 @@ abstract generality. Python 3.12 is the standard environment.
 * Bugsink uses Tailwind via `django-tailwind`
 * Before committing, build the CSS and add it:
   `python manage.py tailwind build && git add theme/static/css/dist/styles.css`
+  (this is done automatically if you use the pre-commit hook from the repo root)
 
 ##### Other
 
diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index 5976603..1052d7c 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -24,6 +24,10 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v4
 
+      - name: Install project `pre-commit` hook
+        run: |
+          cp pre-commit .git/hooks/pre-commit
+
       - name: Set up Python 3.12
         uses: actions/setup-python@v5
         with:
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 44f966e..892313a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -40,6 +40,8 @@ python manage.py tailwind build
 git add theme/static/css/dist/styles.css
 ```
 
+The pre-commit hook in the project's root does this automatically if needed, copy it to .git/hooks
+to auto-run.
 
 ### Security