diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fa42e907b4f..0400274bc6f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,46 +14,24 @@ jobs:
         uses: actions/checkout@v2
         with:
           persist-credentials: false  # needed for JamesIves/github-pages-deploy-action
-
-      - name: Install Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 2.4
       - name: Cache Ruby gems
         id: cache-gems
         uses: actions/cache@v2
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gems-1-${{ hashFiles('Gemfile.lock') }}
-      - name: Set Ruby gems directory
-        run: bundle config path vendor/bundle
-      - name: Install Ruby gems
-        # if: steps.cache-gems.outputs.cache-hit != 'true'
-        run: bundle install --jobs 4 --retry 3 --deployment
-
-      - name: Install Node
-        uses: actions/setup-node@v2
-        with:
-          node-version: '10'  # gulp will likely be upset with newer
       - name: Cache node_modules
         id: cache-node
         uses: actions/cache@v2
         with:
           path: node_modules
           key: ${{ runner.os }}-node-modules-${{ hashFiles('package-lock.json') }}
-      - name: Install NPM packages
-        if: steps.cache-node.outputs.cache-hit != 'true'
-        run: npm install
-
       - name: Cache Bower libraries
         id: cache-bower
         uses: actions/cache@v2
         with:
           path: lib
           key: ${{ runner.os }}-bower-${{ hashFiles('bower.json') }}
-      - name: Install Bower packages
-        if: steps.cache-bower.outputs.cache-hit != 'true'
-        run: node_modules/.bin/bower install
 
       - name: Cache SmugMug
         id: cache-smugmug
@@ -67,27 +45,18 @@ jobs:
           mkdir -p tmp
           wget https://nthp.s3-eu-west-1.amazonaws.com/sm-cache.tar.xz -O tmp/sm-cache.tar.xz
           tar xvf tmp/sm-cache.tar.xz
+      - name: Build
+        run: ./_bin/install
 
       - name: Store build number
         run: echo -n $(($GITHUB_RUN_NUMBER + 10000)) > _includes/travis_build_number.txt
 
       - name: Build the site
-        run: node_modules/.bin/gulp build_deploy
+        run: docker-compose exec app npm run gulp:deploy
         env:
           SMUGMUG_API_KEY: ${{ secrets.SMUGMUG_API_KEY }}
           SMUGMUG_CACHE_MAINTAIN: true
 
-      - name: Cache htmltest files
-        uses: actions/cache@v2
-        with:
-          path: tmp/htmltest
-          key: htmltest-1
-      - name: Test built site with htmltest
-        uses: wjdp/htmltest-action@master
-        continue-on-error: true
-        with:
-          skip_external: true
-
       - name: Publish to GH Pages 🚀
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         uses: JamesIves/github-pages-deploy-action@3.7.1
diff --git a/_docker/app.dockerfile b/_docker/app.dockerfile
index 88fa9076d3c..70df0d202b4 100644
--- a/_docker/app.dockerfile
+++ b/_docker/app.dockerfile
@@ -7,6 +7,8 @@ WORKDIR /app
 
 COPY . .
 
+RUN bundle config path vendor/bundle
+
 RUN gem install bundler -v 2.3.27 \
     && bundle install