diff --git a/.github/workflows/jekyll.yml b/.github/workflows/jekyll.yml
index bbf6aa0..01518d1 100644
--- a/.github/workflows/jekyll.yml
+++ b/.github/workflows/jekyll.yml
@@ -7,9 +7,10 @@
 name: Deploy Jekyll site to Pages
 
 on:
-  # Runs on pushes targeting the default branch
+  # Runs on pushes targeting the default branch and pull requests
   push:
     branches: ["main"]
+  pull_request:
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -52,8 +53,9 @@ jobs:
         # Automatically uploads an artifact from the './_site' directory by default
         uses: actions/upload-pages-artifact@v3
 
-  # Deployment job
+  # Deployment job (only if triggered by push to main)
   deploy:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
diff --git a/Gemfile.lock b/Gemfile.lock
index 6a1576f..107e1f5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,14 +45,8 @@ GEM
       logger
     faraday-net_http (3.4.0)
       net-http (>= 0.5.0)
-    ffi (1.17.1-aarch64-linux-gnu)
-    ffi (1.17.1-aarch64-linux-musl)
-    ffi (1.17.1-arm-linux-gnu)
-    ffi (1.17.1-arm-linux-musl)
     ffi (1.17.1-arm64-darwin)
-    ffi (1.17.1-x86_64-darwin)
     ffi (1.17.1-x86_64-linux-gnu)
-    ffi (1.17.1-x86_64-linux-musl)
     forwardable-extended (2.6.0)
     gemoji (4.1.0)
     github-pages (232)
@@ -241,22 +235,10 @@ GEM
     minitest (5.25.4)
     net-http (0.6.0)
       uri
-    nokogiri (1.18.3-aarch64-linux-gnu)
-      racc (~> 1.4)
-    nokogiri (1.18.3-aarch64-linux-musl)
-      racc (~> 1.4)
-    nokogiri (1.18.3-arm-linux-gnu)
-      racc (~> 1.4)
-    nokogiri (1.18.3-arm-linux-musl)
-      racc (~> 1.4)
     nokogiri (1.18.3-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.18.3-x86_64-darwin)
-      racc (~> 1.4)
     nokogiri (1.18.3-x86_64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.18.3-x86_64-linux-musl)
-      racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
@@ -292,14 +274,8 @@ GEM
     webrick (1.9.1)
 
 PLATFORMS
-  aarch64-linux-gnu
-  aarch64-linux-musl
-  arm-linux-gnu
-  arm-linux-musl
   arm64-darwin
-  x86_64-darwin
-  x86_64-linux-gnu
-  x86_64-linux-musl
+  x86_64-linux
 
 DEPENDENCIES
   github-pages (~> 232)