diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5ce0abd..6bef430 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -3,6 +3,8 @@ name: Build and Deploy
 on:
   push:
     branches: [main]
+  pull_request:
+    branches: [main]
   workflow_dispatch:
 
 permissions:
@@ -11,7 +13,7 @@ permissions:
   id-token: write
 
 concurrency:
-  group: "pages"
+  group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -56,16 +58,19 @@ jobs:
         run: make wasm
 
       - name: Setup Pages
+        if: github.ref == 'refs/heads/main' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
         uses: actions/configure-pages@v5
         with:
           enablement: true
 
       - name: Upload artifact
+        if: github.ref == 'refs/heads/main' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
         uses: actions/upload-pages-artifact@v4
         with:
           path: 'web'
 
   deploy:
+    if: github.ref == 'refs/heads/main' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}