diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 96ecd3a..b65817b 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -5,6 +5,13 @@ on:
     branches:
       - main
 
+  workflow_dispatch:
+
+# Allow one concurrent deployment
+concurrency:
+  group: 'pages'
+  cancel-in-progress: true
+
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
@@ -25,7 +32,7 @@ jobs:
         run: npx tsc
 
       - name: Build
-        run: npm run build
+        run: npm run build -- --base /${{ github.repository }}/
 
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v3