diff --git a/dodona-tested.dockerfile b/dodona-tested.dockerfile
index d165ca8..f0ceeb8 100644
--- a/dodona-tested.dockerfile
+++ b/dodona-tested.dockerfile
@@ -1,73 +1,119 @@
+# This file is autogenerated by the dodona-edu/universal-judge repository
+# Any changes will be overwritten by the CI
+
+# This is the Dockerfile for the tested judge.
+# It can be downloaded using docker pull dodona/dodona-tested.
+
+# This docker image is run in our production environment.
+# It should not contain any development tools or dependencies.
+# Add those to dev-dependencies.sh instead.
+
 FROM python:3.12.4-slim-bullseye
 
-# Environment Kotlin
+# Set up the environment
+
+# Kotlin
 ENV SDKMAN_DIR /usr/local/sdkman
-ENV HASKELL_DIR /usr/local/ghcupdir
 ENV PATH $SDKMAN_DIR/candidates/kotlin/current/bin:$PATH
 ENV PATH $SDKMAN_DIR/candidates/java/current/bin:$PATH
+# Haskell
+ENV HASKELL_DIR /usr/local/ghcupdir
 ENV PATH $HASKELL_DIR/ghc/bin:$PATH
 ENV PATH $HASKELL_DIR/cabal:$PATH
+# Node
 ENV NODE_PATH /usr/lib/node_modules
-# Add manual directory for default-jdk
-RUN mkdir -p /usr/share/man/man1mkdir -p /usr/share/man/man1 \
- && apt-get update \
- # Install additional dependencies
- && apt-get install -y --no-install-recommends \
-       procps \
-       dos2unix \
-       curl \
-       zip \
-       unzip \
-       # Bash language dependencies
-       bc binutils bsdmainutils cowsay ed figlet file toilet tree vim xxd \
-       # Dependencies for GHCup
-       autoconf build-essential zlib1g-dev libgmp-dev \
- && curl https://packages.microsoft.com/config/debian/11/packages-microsoft-prod.deb --output packages-microsoft-prod.deb \
- && dpkg -i packages-microsoft-prod.deb \
- && rm packages-microsoft-prod.deb \
- # JavaScript dependencies
- && bash -c 'set -o pipefail && curl -fsSL https://deb.nodesource.com/setup_22.x | bash -' \
- # Haskell dependencies
- && bash -c "set -o pipefail && curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 sh" \
- && bash -c "source /root/.ghcup/env && ghcup install ghc 9.6 --isolate $HASKELL_DIR/ghc" \
- && bash -c "source /root/.ghcup/env && ghcup install cabal --isolate $HASKELL_DIR/cabal" \
-  # Install programming languages \
- && apt-get install -y --no-install-recommends \
-       # Checkstyle, other Java stuff uses SDKMAN! below
-       checkstyle \
-       hlint \
-       # TESTed C judge dependency
-       gcc \
-       cppcheck \
-       # TESTed Javascript judge dependency
-       nodejs \
-       # TESTed bash judge dependency
-       shellcheck \
-       # C# dependency
-       dotnet-sdk-8.0 \
- && apt-get clean \
- && rm -rf /var/lib/apt/lists/* \
- # TESTed Judge depencencies
- && pip install --no-cache-dir --upgrade psutil==5.9.8 attrs==23.2.0 cattrs==23.2.3 jsonschema==4.22.0 typing_inspect==0.9.0 pyyaml==6.0.1 Pygments==2.18.0 python-i18n==0.3.9 pylint==3.0.1 \
- # TESTed Kotlin judge dependencies
- && bash -c 'set -o pipefail && curl -s "https://get.sdkman.io?rcupdate=false" | bash' \
- && chmod a+x "$SDKMAN_DIR/bin/sdkman-init.sh" \
- && bash -c "source \"$SDKMAN_DIR/bin/sdkman-init.sh\" && sdk install java 21.0.3-tem && sdk install kotlin" \
- && curl -sSLO https://github.com/pinterest/ktlint/releases/download/1.2.1/ktlint \
- && chmod a+x ktlint \
- && mv ktlint /usr/local/bin \
- # JavaScript dependencies
- && npm install -g eslint@8.57 abstract-syntax-tree@2.22 \
- # Haskell dependencies
- && cabal update \
- && cabal v1-install --global aeson \
- # Make sure the students can't find our secret path, which is mounted in
- # /mnt with a secure random name.
- && chmod 711 /mnt \
- # Add the user which will run the student's code and the judge.
- && useradd -m runner \
- && mkdir /home/runner/workdir \
- && chown -R runner:runner /home/runner/workdir
+
+# Install dependencies
+RUN <<EOF
+    # Update apt-get
+    apt-get update
+
+    # Install general dependencies
+    apt-get install -y --no-install-recommends \
+        procps \
+        dos2unix \
+        curl \
+        zip \
+        unzip
+
+    # Python dependencies
+    pip install --no-cache-dir --upgrade \
+        psutil==5.9.8 \
+        attrs==23.2.0 \
+        cattrs==23.2.3 \
+        jsonschema==4.22.0 \
+        typing_inspect==0.9.0 \
+        pyyaml==6.0.1 \
+        Pygments==2.18.0 \
+        python-i18n==0.3.9 \
+        pylint==3.0.1
+
+    # C/C++ dependencies
+    apt-get install -y --no-install-recommends \
+        gcc \
+        cppcheck
+
+    # Bash dependencies
+    apt-get install -y --no-install-recommends \
+        bc \
+        binutils \
+        bsdmainutils \
+        cowsay \
+        ed \
+        figlet \
+        file \
+        toilet \
+        tree \
+        vim \
+        xxd \
+        shellcheck
+
+    # Haskell dependencies
+    apt-get install -y --no-install-recommends \
+        hlint \
+        autoconf \
+        build-essential \
+        zlib1g-dev \
+        libgmp-dev
+    bash -c "set -o pipefail && curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 BOOTSTRAP_HASKELL_MINIMAL=1 sh"
+    bash -c "source /root/.ghcup/env && ghcup install ghc 9.6 --isolate $HASKELL_DIR/ghc"
+    bash -c "source /root/.ghcup/env && ghcup install cabal --isolate $HASKELL_DIR/cabal"
+    cabal update
+    cabal v1-install --global aeson
+
+    # JavaScript dependencies
+    bash -c 'set -o pipefail && curl -fsSL https://deb.nodesource.com/setup_22.x | bash -'
+    apt-get install -y --no-install-recommends nodejs
+    npm install -g eslint@8.57 abstract-syntax-tree@2.22
+
+    # C# dependencies
+    curl https://packages.microsoft.com/config/debian/11/packages-microsoft-prod.deb --output packages-microsoft-prod.deb
+    dpkg -i packages-microsoft-prod.deb
+    rm packages-microsoft-prod.deb
+    apt-get update
+    apt-get install -y --no-install-recommends dotnet-sdk-8.0
+
+    # Java and Kotlin dependencies
+    bash -c 'set -o pipefail && curl -s "https://get.sdkman.io?rcupdate=false" | bash'
+    chmod a+x "$SDKMAN_DIR/bin/sdkman-init.sh"
+    bash -c "source \"$SDKMAN_DIR/bin/sdkman-init.sh\" && sdk install java 21.0.3-tem && sdk install kotlin"
+    curl -sSLO https://github.com/pinterest/ktlint/releases/download/1.2.1/ktlint
+    chmod a+x ktlint
+    mv ktlint /usr/local/bin
+
+    # Java specific dependencies
+    apt-get install -y --no-install-recommends checkstyle
+
+    # Clean up apt caches
+    apt-get clean
+    rm -rf /var/lib/apt/lists/*
+
+    # Setup permissions and user
+    chmod 711 /mnt
+    useradd -m runner
+    mkdir /home/runner/workdir
+    chown -R runner:runner /home/runner/workdir
+EOF
 
 USER runner
 WORKDIR /home/runner/workdir