anchor.diff:  
   # --------------------------------
   # Install Maven
  -ENV MAVEN_VERSION=3.8.3
  +ENV MAVEN_VERSION=3.8.5
   RUN mkdir -p /usr/local/apache-maven
   RUN cd /usr/local/ && wget "https://www.apache.org/dyn/closer.lua?action=download&filename=/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz" -O "apache-maven-${MAVEN_VERSION}-bin.tar.gz"
   RUN cd /usr/local/ && tar xzf apache-maven-${MAVEN_VERSION}-bin.tar.gz --strip-components 1 -C /usr/local/apache-maven
  
positive.code: # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  FROM ubuntu:22.04
  
  WORKDIR /root
  
  
negative.code: RUN wget https://raw.githubusercontent.com/juven/maven-bash-completion/master/bash_completion.bash -O /etc/bash_completion.d/maven
  
  # --------------------------------
  # Install shellcheck
  ENV SHELLCHECK_VERSION=0.8.0
  RUN cd /usr/local/bin && \
      wget https://github.com/koalaman/shellcheck/releases/download/v${SHELLCHECK_VERSION}/shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz && \
      tar xJf shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz && \
      mv shellcheck-v${SHELLCHECK_VERSION}/shellcheck . && \
      rm -rf shellcheck-v${SHELLCHECK_VERSION} shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz
  
  # --------------------------------
  # Install Hugo
  ENV HUGO_VERSION=0.100.1
  RUN cd /usr/local/bin && \
      wget https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
      tar xzf hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
      rm -f hugo_${HUGO_VERSION}_Linux-64bit.tar.gz
  
  # --------------------------------
  # Add a welcome message and environment checks.
  