From d039474eecdad378ab53446b91f596699a007c0f Mon Sep 17 00:00:00 2001
From: Matthias <matthias@endler.dev>
Date: Wed, 17 Jun 2026 18:27:12 +0200
Subject: [PATCH] ci: serialize deploys to prevent gh-pages race

---
 .github/workflows/deploy.yml | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 84f99c37..c7f3421e 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -3,10 +3,17 @@ name: Zola
 on:
   push:
     branches:
-      - master 
+      - master
   pull_request:
   workflow_dispatch:
 
+# Serialize deploys so concurrent runs can't race when force-pushing to
+# gh-pages, which can leave the GitHub Pages deployment wedged. Queue rather
+# than cancel, so a half-finished push is never interrupted.
+concurrency:
+  group: pages-${{ github.ref }}
+  cancel-in-progress: false
+
 jobs:
   build:
     name: Build
@@ -20,7 +27,7 @@ jobs:
           BUILD_DIR: .
           BUILD_ONLY: true
           BUILD_FLAGS: --drafts
-          
+
   deploy:
     name: Deploy
     runs-on: ubuntu-latest