diff --git a/.github/workflows/generate-lockfile.yml b/.github/workflows/generate-lockfile.yml
new file mode 100644
index 0000000..7ec7eed
--- /dev/null
+++ b/.github/workflows/generate-lockfile.yml
@@ -0,0 +1,42 @@
+name: Generate Gemfile.lock
+
+on:
+  push:
+    paths:
+      - Gemfile
+
+jobs:
+  generate-lockfile:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.0'
+          bundler-cache: true
+
+      - name: Debug bundler environment
+        run: |
+          ruby -v
+          bundler -v
+          gem env
+          gem list
+
+      - name: Install dependencies
+        run: bundle install --jobs 4 --retry 3
+        env:
+          BUNDLE_PATH: vendor/bundle
+
+      - name: Commit and push Gemfile.lock
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git add Gemfile.lock
+          git commit -m "Add Gemfile.lock (generated by GitHub Actions)"
+          git push
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..8635572
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gem "jekyll", "3.9.2"
+gem "minimal-mistakes-jekyll"
+gem "github-pages", "~> 227", group: :jekyll_plugins
diff --git a/_config.yml b/_config.yml
index 96670bb..1bd4782 100755
--- a/_config.yml
+++ b/_config.yml
@@ -10,7 +10,7 @@
 # Review documentation to determine if you should use `theme` or `remote_theme`
 # https://mmistakes.github.io/minimal-mistakes/docs/quick-start-guide/#installing-the-theme
 
-# theme                  : "minimal-mistakes-jekyll"
+theme                    : "minimal-mistakes-jekyll"
 # remote_theme           : "mmistakes/minimal-mistakes"
 minimal_mistakes_skin    : "default" # "air", "aqua", "contrast", "dark", "dirt", "neon", "mint", "plum", "sunrise"
 
@@ -235,6 +235,7 @@ plugins:
   - jekyll-sitemap
   - jekyll-gist
   - jekyll-feed
+  - jekyll-seo-tag
   - jekyll-include-cache
 
 # mimic GitHub Pages with --safe