diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6fd05537f..c67be8a4c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -187,6 +187,37 @@ jobs:
           docker login --username discoursebuild --password $DOCKERHUB_PASSWORD
           docker tag discourse/base:build_release_main_amd64 discourse/base:release-ruby-3.4.7
           docker push discourse/base:release-ruby-3.4.7
+  multi_rubies:
+    runs-on: debian-12-8core
+    timeout-minutes: 30
+    needs: base
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 1
+      - name: build slim image
+        run: |
+          cd image && ruby auto_build.rb base_slim_main_amd64 --build-arg="FROM_DOCKER_IMAGE_TAG=3.3.8-and-3.4.7-bookworm-slim"
+      - name: build release image
+        run: |
+          cd image && ruby auto_build.rb base_release_main_amd64 --build-arg="FROM_DOCKER_IMAGE_TAG=3.3.8-and-3.4.7-bookworm-slim"
+      - name: build test_build image
+        run: |
+          cd image && ruby auto_build.rb discourse_test_build_amd64 --build-arg="FROM_DOCKER_IMAGE_TAG=3.3.8-and-3.4.7-bookworm-slim"
+      - name: run specs
+        run: |
+          docker run --rm -e RUBY_ONLY=1 -e USE_TURBO=1 -e SKIP_PLUGINS=1 -e SKIP_LINT=1 discourse/discourse_test:build_amd64
+      - name: Print summary
+        run: |
+          docker images discourse/base
+      - name: push to dockerhub
+        if: success() && (github.ref == 'refs/heads/main')
+        env:
+          DOCKERHUB_PASSWORD: ${{ secrets.DOCKERHUB_PASSWORD }}
+        run: |
+          docker login --username discoursebuild --password $DOCKERHUB_PASSWORD
+          docker tag discourse/base:build_release_main_amd64 discourse/base:release-ruby-3.3.8-and-3.4.7
+          docker push discourse/base:release-ruby-3.3.8-and-3.4.7
   push_multi_arch_manifests:
     runs-on: ubuntu-latest
     needs: [base, timestamp]
diff --git a/image/base/Dockerfile b/image/base/Dockerfile
index 1a1b51084..fc603ad09 100644
--- a/image/base/Dockerfile
+++ b/image/base/Dockerfile
@@ -3,8 +3,9 @@
 
 ARG DEBIAN_RELEASE=bookworm
 ARG RUBY_VERSION=3.3.8
+ARG FROM_DOCKER_IMAGE_TAG=${RUBY_VERSION}-${DEBIAN_RELEASE}-slim
 
-FROM discourse/ruby:${RUBY_VERSION}-${DEBIAN_RELEASE}-slim AS builder
+FROM discourse/ruby:${FROM_DOCKER_IMAGE_TAG} AS builder
 ARG DEBIAN_RELEASE
 ENV DEBIAN_RELEASE=${DEBIAN_RELEASE}
 RUN echo "deb http://deb.debian.org/debian ${DEBIAN_RELEASE}-backports main" > "/etc/apt/sources.list.d/${DEBIAN_RELEASE}-backports.list"
@@ -30,7 +31,7 @@ RUN gpg --import /tmp/nginx_public_keys.key &&\
     rm /tmp/nginx_public_keys.key &&\
     /tmp/install-nginx
 
-FROM discourse/ruby:${RUBY_VERSION}-${DEBIAN_RELEASE}-slim AS discourse_dependencies
+FROM discourse/ruby:${FROM_DOCKER_IMAGE_TAG} AS discourse_dependencies
 
 ARG DEBIAN_RELEASE
 ARG PG_MAJOR=15