diff --git a/.github/workflows/build-test-publish.yml b/.github/workflows/build-test-publish.yml
index 78043737..5df5b98d 100644
--- a/.github/workflows/build-test-publish.yml
+++ b/.github/workflows/build-test-publish.yml
@@ -1,12 +1,7 @@
 name: Build, Test, Publish
 
 on:
-  pull_request:
   push:
-    branches: ["main"]
-  schedule:
-    - cron: "0 0 * * 1-5"
-  workflow_dispatch:
 
 permissions:
   contents: read
@@ -20,156 +15,12 @@ defaults:
 
 jobs:
 
-  create:
-    runs-on: ubuntu-22.04
-    strategy:
-      fail-fast: false
-      matrix:
-        builder: ["buildpacks-20", "builder-classic-22", "builder-20", "builder-22", "salesforce-functions"]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Install Pack CLI
-        uses: buildpacks/github-actions/setup-pack@v5.5.0
-      - name: Create builder image
-        run: pack builder create ${{ matrix.builder }} --config ${{ matrix.builder }}/builder.toml --pull-policy always
-      # We export the run image too (and not just the generated builder image), since it adds virtually
-      # no size to the archive (since the layers are mostly duplicates), and it ends up being quicker
-      # than docker pulling the run image in the jobs that perform the pack build.
-      # We manually compress the archive rather than relying upon actions/cache's compression, since
-      # it ends up being faster both in this job and also later when the images are consumed.
-      - name: Export Docker images from the Docker daemon
-        # Using sed rather than yq until this yq bug is fixed:
-        # https://github.com/mikefarah/yq/issues/1758
-        run: |
-          RUN_IMAGE_TAG=$(sed --quiet --regexp-extended --expression 's/run-image\s*=\s*"(.+)"/\1/p' ${{ matrix.builder }}/builder.toml)
-          docker save ${{ matrix.builder }} ${RUN_IMAGE_TAG} | zstd -T0 --long=31 -o images.tar.zst
-      # We use a cache here rather than artifacts because it's 4x faster and we
-      # don't need the builder archive outside of this workflow run anyway.
-      - name: Save Docker images to the cache
-        uses: actions/cache/save@v3
-        with:
-          key: ${{ github.run_id}}-${{ matrix.builder }}
-          path: images.tar.zst
-
-  test-guides:
-    runs-on: ubuntu-22.04
-    needs: create
-    strategy:
-      fail-fast: false
-      matrix:
-        builder: ["buildpacks-20", "builder-classic-22", "builder-20", "builder-22"]
-        language: ["go", "gradle", "java", "node-js", "php", "python", "ruby", "scala"]
-        include:
-          - builder: builder-classic-22
-            language: clojure
-    steps:
-      - name: Checkout getting started guide
-        uses: actions/checkout@v4
-        with:
-          ref: main
-          repository: heroku/${{ matrix.language }}-getting-started.git
-      - name: Install Pack CLI
-        uses: buildpacks/github-actions/setup-pack@v5.5.0
-      - name: Restore Docker images from the cache
-        uses: actions/cache/restore@v3
-        with:
-          fail-on-cache-miss: true
-          key: ${{ github.run_id}}-${{ matrix.builder }}
-          path: images.tar.zst
-        env:
-          SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
-      - name: Load Docker images into the Docker daemon
-        run: zstd -dc --long=31 images.tar.zst | docker load
-      - name: Build getting started guide image
-        run: pack build getting-started --builder ${{ matrix.builder }} --trust-builder --pull-policy never
-      - name: Start getting started guide image
-        # The `DYNO` env var is set to more accurately reflect the Heroku environment, since some of the getting
-        # started guides use the presence of `DYNO` to determine whether to enable production mode or not.
-        run: docker run --name getting-started --detach -p 8080:8080 --env PORT=8080 --env DYNO=web.1 getting-started
-      - name: Test getting started web server response
-        run: |
-          if curl -sSf --retry 10 --retry-delay 1 --retry-all-errors --connect-timeout 3 http://localhost:8080 -o response.txt; then
-            echo "Successful response from server"
-          else
-            echo "Server did not respond successfully"
-            docker logs getting-started
-            [[ -f response.txt ]] && cat response.txt
-            exit 1
-          fi
-
-  test-functions:
-    runs-on: ubuntu-22.04
-    needs: create
-    strategy:
-      fail-fast: false
-      matrix:
-        builder: ["salesforce-functions"]
-        language: ["java", "javascript", "typescript"]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Install Pack CLI
-        uses: buildpacks/github-actions/setup-pack@v5.5.0
-      - name: Restore Docker images from the cache
-        uses: actions/cache/restore@v3
-        with:
-          fail-on-cache-miss: true
-          key: ${{ github.run_id}}-${{ matrix.builder }}
-          path: images.tar.zst
-        env:
-          SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
-      - name: Load Docker images into the Docker daemon
-        run: zstd -dc --long=31 images.tar.zst | docker load
-      - name: Build example function image
-        run: pack build example-function --path salesforce-functions/examples/${{ matrix.language }} --builder ${{ matrix.builder }} --trust-builder --pull-policy never
-      - name: Start example function image
-        run: docker run --name example-function --detach -p 8080:8080 --env PORT=8080 --env DYNO=web.1 example-function
-      - name: Test example function web server response
-        run: |
-          if curl -sSf --retry 10 --retry-delay 1 --retry-all-errors --connect-timeout 3 -X POST -H 'x-health-check: true' http://localhost:8080 -o response.txt; then
-            echo "Successful response from function"
-          else
-            echo "Function did not respond successfully"
-            docker logs example-function
-            [[ -f response.txt ]] && cat response.txt
-            exit 1
-          fi
-
   publish:
     runs-on: ubuntu-22.04
-    if: success() && github.ref == 'refs/heads/main'
-    needs: ["test-guides", "test-functions"]
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - builder: buildpacks-20
-            tag_public: heroku/buildpacks:20
-          - builder: builder-classic-22
-            tag_public: heroku/builder-classic:22
-          - builder: builder-20
-            tag_public: heroku/builder:20
-          - builder: builder-22
-            tag_public: heroku/builder:22
-          - builder: salesforce-functions
-            tag_private: heroku-22:builder-functions
     steps:
-      - name: Restore Docker images from the cache
-        uses: actions/cache/restore@v3
-        with:
-          fail-on-cache-miss: true
-          key: ${{ github.run_id}}-${{ matrix.builder }}
-          path: images.tar.zst
-        env:
-          SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
-      - name: Load Docker images into the Docker daemon
-        run: zstd -dc --long=31 images.tar.zst | docker load
-      - name: Log into Docker Hub
-        if: matrix.tag_public != ''
-        run: echo '${{ secrets.DOCKER_HUB_TOKEN }}' | docker login -u '${{ secrets.DOCKER_HUB_USER }}' --password-stdin
+      - name: Install crane
+        uses: buildpacks/github-actions/setup-tools@v5.4.0
       - name: Log into internal registry
-        if: matrix.tag_private != ''
         run: |
           REGISTRY_TOKEN=$(
             curl -sSf --retry 3 --retry-delay 1 --retry-all-errors --connect-timeout 3 \
@@ -178,17 +29,15 @@ jobs:
               | jq --exit-status -r '.raw_id_token'
           )
           echo "${REGISTRY_TOKEN}" | docker login '${{ secrets.REGISTRY_HOST }}' -u '${{ secrets.REGISTRY_USER }}' --password-stdin
-      - name: Tag builder and push to Docker Hub
-        if: matrix.tag_public != ''
-        run: |
-          PUBLIC_IMAGE_URI='${{ matrix.tag_public }}'
-          set -x
-          docker tag '${{ matrix.builder }}' "${PUBLIC_IMAGE_URI}"
-          docker push "${PUBLIC_IMAGE_URI}"
-      - name: Tag builder and push to internal registry
-        if: matrix.tag_private != ''
+      - name: Delete unused internal images
         run: |
-          PRIVATE_IMAGE_URI='${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/${{ matrix.tag_private }}'
           set -x
-          docker tag '${{ matrix.builder }}' "${PRIVATE_IMAGE_URI}"
-          docker push "${PRIVATE_IMAGE_URI}"
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-18:builder'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-18:build'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-18:run'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-20:builder'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-20:build'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-20:run'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-22:builder'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-22:build'
+          crane delete '${{ secrets.REGISTRY_HOST }}/s/${{ secrets.SERVICE_TOKEN_USER_NAME }}/heroku-22:run'