From 1418d3aec76ae202e623c22129a46d7ef5c8081f Mon Sep 17 00:00:00 2001
From: Sujan P <sujan.p@talview.com>
Date: Tue, 26 May 2026 12:04:34 +0530
Subject: [PATCH] fix: docker file updated for upgrading compiler

---
 Dockerfile | 938 +++++++++++++++++++++++++++++------------------------
 1 file changed, 507 insertions(+), 431 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 78833f7..32729fd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,531 +1,604 @@
-# Check for latest version here: https://hub.docker.com/_/buildpack-deps?tab=tags&page=1&name=buster&ordering=last_updated
-# This is just a snapshot of buildpack-deps:buster that was last updated on 2019-12-28.
+# Base image: buildpack-deps:buster (Debian 10)
+# https://hub.docker.com/_/buildpack-deps?tab=tags&page=1&name=buster
 FROM judge0/buildpack-deps:buster-2019-12-28
 
-# Check for latest version here: https://gcc.gnu.org/releases.html, https://ftpmirror.gnu.org/gcc
-ENV GCC_VERSIONS \
-      7.4.0 \
-      8.3.0 \
-      9.2.0
+# Debian Buster is EOL — redirect apt to archive.debian.org
+RUN printf "deb http://archive.debian.org/debian buster main\ndeb http://archive.debian.org/debian-security buster/updates main\n" > /etc/apt/sources.list
+
+# ─────────────────────────────────────────────
+# GCC 14.2.0  (covers both C and C++)
+# https://gcc.gnu.org/releases.html
+# GCC 14 requires a C11-capable host — use gcc-8 (default in buster) as bootstrap
+# ─────────────────────────────────────────────
+ENV GCC_VERSIONS="14.2.0"
 RUN set -xe && \
+    apt-get update && \
+    apt-get install -y --no-install-recommends gcc g++ && \
+    rm -rf /var/lib/apt/lists/* && \
     for VERSION in $GCC_VERSIONS; do \
-      curl -fSsL "https://ftpmirror.gnu.org/gcc/gcc-$VERSION/gcc-$VERSION.tar.gz" -o /tmp/gcc-$VERSION.tar.gz && \
-      mkdir /tmp/gcc-$VERSION && \
-      tar -xf /tmp/gcc-$VERSION.tar.gz -C /tmp/gcc-$VERSION --strip-components=1 && \
-      rm /tmp/gcc-$VERSION.tar.gz && \
-      cd /tmp/gcc-$VERSION && \
-      ./contrib/download_prerequisites && \
-      { rm *.tar.* || true; } && \
-      tmpdir="$(mktemp -d)" && \
-      cd "$tmpdir"; \
-      if [ $VERSION = "9.2.0" ]; then \
-        ENABLE_FORTRAN=",fortran"; \
-      else \
-        ENABLE_FORTRAN=""; \
-      fi; \
-      /tmp/gcc-$VERSION/configure \
-        --disable-multilib \
-        --enable-languages=c,c++$ENABLE_FORTRAN \
-        --prefix=/usr/local/gcc-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install-strip && \
-      rm -rf /tmp/*; \
+    curl -fSsL "https://ftpmirror.gnu.org/gcc/gcc-$VERSION/gcc-$VERSION.tar.gz" -o /tmp/gcc-$VERSION.tar.gz && \
+    mkdir /tmp/gcc-$VERSION && \
+    tar -xf /tmp/gcc-$VERSION.tar.gz -C /tmp/gcc-$VERSION --strip-components=1 && \
+    rm /tmp/gcc-$VERSION.tar.gz && \
+    cd /tmp/gcc-$VERSION && \
+    ./contrib/download_prerequisites && \
+    { rm *.tar.* || true; } && \
+    tmpdir="$(mktemp -d)" && \
+    cd "$tmpdir" && \
+    CC=gcc CXX=g++ /tmp/gcc-$VERSION/configure \
+    --disable-multilib \
+    --enable-languages=c,c++,fortran \
+    --prefix=/usr/local/gcc-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install-strip && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.ruby-lang.org/en/downloads
-ENV RUBY_VERSIONS \
-      2.7.0
+# ─────────────────────────────────────────────
+# Ruby 3.3.7
+# https://www.ruby-lang.org/en/downloads
+# ─────────────────────────────────────────────
+ENV RUBY_VERSIONS="3.3.7"
 RUN set -xe && \
     for VERSION in $RUBY_VERSIONS; do \
-      curl -fSsL "https://cache.ruby-lang.org/pub/ruby/${VERSION%.*}/ruby-$VERSION.tar.gz" -o /tmp/ruby-$VERSION.tar.gz && \
-      mkdir /tmp/ruby-$VERSION && \
-      tar -xf /tmp/ruby-$VERSION.tar.gz -C /tmp/ruby-$VERSION --strip-components=1 && \
-      rm /tmp/ruby-$VERSION.tar.gz && \
-      cd /tmp/ruby-$VERSION && \
-      ./configure \
-        --disable-install-doc \
-        --prefix=/usr/local/ruby-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    curl -fSsL "https://cache.ruby-lang.org/pub/ruby/${VERSION%.*}/ruby-$VERSION.tar.gz" -o /tmp/ruby-$VERSION.tar.gz && \
+    mkdir /tmp/ruby-$VERSION && \
+    tar -xf /tmp/ruby-$VERSION.tar.gz -C /tmp/ruby-$VERSION --strip-components=1 && \
+    rm /tmp/ruby-$VERSION.tar.gz && \
+    cd /tmp/ruby-$VERSION && \
+    ./configure \
+    --disable-install-doc \
+    --prefix=/usr/local/ruby-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.python.org/downloads
-ENV PYTHON_VERSIONS \
-      3.8.1 \
-      2.7.17
+# ─────────────────────────────────────────────
+# Python 3.12.9
+# https://www.python.org/downloads
+# ─────────────────────────────────────────────
+ENV PYTHON_VERSIONS="3.12.9"
 RUN set -xe && \
     for VERSION in $PYTHON_VERSIONS; do \
-      curl -fSsL "https://www.python.org/ftp/python/$VERSION/Python-$VERSION.tar.xz" -o /tmp/python-$VERSION.tar.xz && \
-      mkdir /tmp/python-$VERSION && \
-      tar -xf /tmp/python-$VERSION.tar.xz -C /tmp/python-$VERSION --strip-components=1 && \
-      rm /tmp/python-$VERSION.tar.xz && \
-      cd /tmp/python-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/python-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    curl -fSsL "https://www.python.org/ftp/python/$VERSION/Python-$VERSION.tar.xz" -o /tmp/python-$VERSION.tar.xz && \
+    mkdir /tmp/python-$VERSION && \
+    tar -xf /tmp/python-$VERSION.tar.xz -C /tmp/python-$VERSION --strip-components=1 && \
+    rm /tmp/python-$VERSION.tar.xz && \
+    cd /tmp/python-$VERSION && \
+    ./configure \
+    --prefix=/usr/local/python-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://ftp.gnu.org/gnu/octave
-ENV OCTAVE_VERSIONS \
-      5.1.0
+# ─────────────────────────────────────────────
+# Node.js 22.15.0 LTS  (pre-built binary)
+# https://nodejs.org/en
+# ─────────────────────────────────────────────
+ENV NODE_VERSIONS="22.15.0"
 RUN set -xe && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends gfortran libblas-dev liblapack-dev libpcre3-dev && \
-    rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $OCTAVE_VERSIONS; do \
-      curl -fSsL "https://ftp.gnu.org/gnu/octave/octave-$VERSION.tar.gz" -o /tmp/octave-$VERSION.tar.gz && \
-      mkdir /tmp/octave-$VERSION && \
-      tar -xf /tmp/octave-$VERSION.tar.gz -C /tmp/octave-$VERSION --strip-components=1 && \
-      rm /tmp/octave-$VERSION.tar.gz && \
-      cd /tmp/octave-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/octave-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
-    done
-
-# Check for latest version here: https://jdk.java.net
-RUN set -xe && \
-    curl -fSsL "https://download.java.net/java/GA/jdk13.0.1/cec27d702aa74d5a8630c65ae61e4305/9/GPL/openjdk-13.0.1_linux-x64_bin.tar.gz" -o /tmp/openjdk13.tar.gz && \
-    mkdir /usr/local/openjdk13 && \
-    tar -xf /tmp/openjdk13.tar.gz -C /usr/local/openjdk13 --strip-components=1 && \
-    rm /tmp/openjdk13.tar.gz && \
-    ln -s /usr/local/openjdk13/bin/javac /usr/local/bin/javac && \
-    ln -s /usr/local/openjdk13/bin/java /usr/local/bin/java && \
-    ln -s /usr/local/openjdk13/bin/jar /usr/local/bin/jar
-
-# Check for latest version here: https://ftpmirror.gnu.org/bash
-ENV BASH_VERSIONS \
-      5.0
-RUN set -xe && \
-    for VERSION in $BASH_VERSIONS; do \
-      curl -fSsL "https://ftpmirror.gnu.org/bash/bash-$VERSION.tar.gz" -o /tmp/bash-$VERSION.tar.gz && \
-      mkdir /tmp/bash-$VERSION && \
-      tar -xf /tmp/bash-$VERSION.tar.gz -C /tmp/bash-$VERSION --strip-components=1 && \
-      rm /tmp/bash-$VERSION.tar.gz && \
-      cd /tmp/bash-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/bash-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    for VERSION in $NODE_VERSIONS; do \
+    curl -fSsL "https://nodejs.org/dist/v$VERSION/node-v$VERSION-linux-x64.tar.xz" -o /tmp/node-$VERSION.tar.xz && \
+    mkdir /usr/local/node-$VERSION && \
+    tar -xf /tmp/node-$VERSION.tar.xz -C /usr/local/node-$VERSION --strip-components=1 && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.freepascal.org/download.html
-ENV FPC_VERSIONS \
-      3.0.4
-RUN set -xe && \
-    for VERSION in $FPC_VERSIONS; do \
-      curl -fSsL "ftp://ftp.freepascal.org/fpc/dist/$VERSION/x86_64-linux/fpc-$VERSION.x86_64-linux.tar" -o /tmp/fpc-$VERSION.tar && \
-      mkdir /tmp/fpc-$VERSION && \
-      tar -xf /tmp/fpc-$VERSION.tar -C /tmp/fpc-$VERSION --strip-components=1 && \
-      rm /tmp/fpc-$VERSION.tar && \
-      cd /tmp/fpc-$VERSION && \
-      echo "/usr/local/fpc-$VERSION" | sh install.sh && \
-      rm -rf /tmp/*; \
+# ─────────────────────────────────────────────
+# JDK 21.0.7 LTS  (Eclipse Temurin, pre-built)
+# https://adoptium.net/temurin/releases
+# ─────────────────────────────────────────────
+ENV JDK_VERSIONS="21.0.7"
+RUN set -xe && \
+    for VERSION in $JDK_VERSIONS; do \
+    curl -fSsL "https://github.com/adoptium/temurin21-binaries/releases/download/jdk-${VERSION}%2B6/OpenJDK21U-jdk_x64_linux_hotspot_${VERSION}_6.tar.gz" -o /tmp/jdk-$VERSION.tar.gz && \
+    mkdir /usr/local/jdk-$VERSION && \
+    tar -xf /tmp/jdk-$VERSION.tar.gz -C /usr/local/jdk-$VERSION --strip-components=1 && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.haskell.org/ghc/download.html
-ENV HASKELL_VERSIONS \
-      8.8.1
+# ─────────────────────────────────────────────
+# PHP 8.3.19
+# https://www.php.net/downloads
+# ─────────────────────────────────────────────
+ENV PHP_VERSIONS="8.3.19"
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends libgmp-dev libtinfo5 && \
+    apt-get install -y --no-install-recommends bison re2c libxml2-dev libssl-dev pkg-config && \
     rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $HASKELL_VERSIONS; do \
-      curl -fSsL "https://downloads.haskell.org/~ghc/$VERSION/ghc-$VERSION-x86_64-deb8-linux.tar.xz" -o /tmp/ghc-$VERSION.tar.xz && \
-      mkdir /tmp/ghc-$VERSION && \
-      tar -xf /tmp/ghc-$VERSION.tar.xz -C /tmp/ghc-$VERSION --strip-components=1 && \
-      rm /tmp/ghc-$VERSION.tar.xz && \
-      cd /tmp/ghc-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/ghc-$VERSION && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    for VERSION in $PHP_VERSIONS; do \
+    curl -fSsL "https://www.php.net/distributions/php-$VERSION.tar.xz" -o /tmp/php-$VERSION.tar.xz && \
+    mkdir /tmp/php-$VERSION && \
+    tar -xf /tmp/php-$VERSION.tar.xz -C /tmp/php-$VERSION --strip-components=1 && \
+    rm /tmp/php-$VERSION.tar.xz && \
+    cd /tmp/php-$VERSION && \
+    ./buildconf --force && \
+    ./configure \
+    --prefix=/usr/local/php-$VERSION \
+    --with-openssl \
+    --with-zlib && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.mono-project.com/download/stable
-ENV MONO_VERSIONS \
-      6.6.0.161
+# ─────────────────────────────────────────────
+# Go 1.24.3  (pre-built binary)
+# https://golang.org/dl
+# ─────────────────────────────────────────────
+ENV GO_VERSIONS="1.24.3"
+RUN set -xe && \
+    for VERSION in $GO_VERSIONS; do \
+    curl -fSsL "https://go.dev/dl/go$VERSION.linux-amd64.tar.gz" -o /tmp/go-$VERSION.tar.gz && \
+    mkdir /usr/local/go-$VERSION && \
+    tar -xf /tmp/go-$VERSION.tar.gz -C /usr/local/go-$VERSION --strip-components=1 && \
+    rm -rf /tmp/*; \
+    done
+
+# ─────────────────────────────────────────────
+# Kotlin 2.0.21  (pre-built, requires JDK 21)
+# https://kotlinlang.org
+# ─────────────────────────────────────────────
+ENV KOTLIN_VERSIONS="2.0.21"
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends cmake && \
+    apt-get install -y --no-install-recommends unzip && \
     rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $MONO_VERSIONS; do \
-      curl -fSsL "https://download.mono-project.com/sources/mono/mono-$VERSION.tar.xz" -o /tmp/mono-$VERSION.tar.xz && \
-      mkdir /tmp/mono-$VERSION && \
-      tar -xf /tmp/mono-$VERSION.tar.xz -C /tmp/mono-$VERSION --strip-components=1 && \
-      rm /tmp/mono-$VERSION.tar.xz && \
-      cd /tmp/mono-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/mono-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(proc) install && \
-      rm -rf /tmp/*; \
+    for VERSION in $KOTLIN_VERSIONS; do \
+    curl -fSsL "https://github.com/JetBrains/kotlin/releases/download/v$VERSION/kotlin-compiler-$VERSION.zip" -o /tmp/kotlin-$VERSION.zip && \
+    unzip -d /usr/local/kotlin-$VERSION /tmp/kotlin-$VERSION.zip && \
+    mv /usr/local/kotlin-$VERSION/kotlinc/* /usr/local/kotlin-$VERSION/ && \
+    rm -rf /usr/local/kotlin-$VERSION/kotlinc && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://nodejs.org/en
-ENV NODE_VERSIONS \
-      12.14.0
+# ─────────────────────────────────────────────
+# TypeScript 5.4.5  (npm global, uses Node 22.15.0)
+# https://github.com/microsoft/TypeScript/releases
+# ─────────────────────────────────────────────
+ENV TYPESCRIPT_VERSIONS="5.4.5"
 RUN set -xe && \
-    for VERSION in $NODE_VERSIONS; do \
-      curl -fSsL "https://nodejs.org/dist/v$VERSION/node-v$VERSION.tar.gz" -o /tmp/node-$VERSION.tar.gz && \
-      mkdir /tmp/node-$VERSION && \
-      tar -xf /tmp/node-$VERSION.tar.gz -C /tmp/node-$VERSION --strip-components=1 && \
-      rm /tmp/node-$VERSION.tar.gz && \
-      cd /tmp/node-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/node-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    for VERSION in $TYPESCRIPT_VERSIONS; do \
+    PATH="/usr/local/node-22.15.0/bin:$PATH" npm install -g typescript@$VERSION; \
     done
 
-# Check for latest version here: https://github.com/erlang/otp/releases
-ENV ERLANG_VERSIONS \
-      22.2
+# ─────────────────────────────────────────────
+# Erlang/OTP 27.3  (required by Elixir)
+# https://github.com/erlang/otp/releases
+# ─────────────────────────────────────────────
+ENV ERLANG_VERSIONS="27.3"
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends unzip && \
+    apt-get install -y --no-install-recommends libssl-dev libncurses-dev autoconf && \
     rm -rf /var/lib/apt/lists/* && \
     for VERSION in $ERLANG_VERSIONS; do \
-      curl -fSsL "https://github.com/erlang/otp/archive/OTP-$VERSION.tar.gz" -o /tmp/erlang-$VERSION.tar.gz && \
-      mkdir /tmp/erlang-$VERSION && \
-      tar -xf /tmp/erlang-$VERSION.tar.gz -C /tmp/erlang-$VERSION --strip-components=1 && \
-      rm /tmp/erlang-$VERSION.tar.gz && \
-      cd /tmp/erlang-$VERSION && \
-      ./otp_build autoconf && \
-      ./configure \
-        --prefix=/usr/local/erlang-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    curl -fSsL "https://github.com/erlang/otp/archive/OTP-$VERSION.tar.gz" -o /tmp/erlang-$VERSION.tar.gz && \
+    mkdir /tmp/erlang-$VERSION && \
+    tar -xf /tmp/erlang-$VERSION.tar.gz -C /tmp/erlang-$VERSION --strip-components=1 && \
+    rm /tmp/erlang-$VERSION.tar.gz && \
+    cd /tmp/erlang-$VERSION && \
+    ./otp_build autoconf && \
+    ./configure \
+    --prefix=/usr/local/erlang-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done; \
-    ln -s /usr/local/erlang-22.2/bin/erl /usr/local/bin/erl
+    ln -s /usr/local/erlang-27.3/bin/erl /usr/local/bin/erl
 
-# Check for latest version here: https://github.com/elixir-lang/elixir/releases
-ENV ELIXIR_VERSIONS \
-      1.9.4
+# ─────────────────────────────────────────────
+# Elixir 1.18.3  (pre-built OTP-27 zip)
+# https://github.com/elixir-lang/elixir/releases
+# ─────────────────────────────────────────────
+ENV ELIXIR_VERSIONS="1.18.3"
 RUN set -xe && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends unzip && \
-    rm -rf /var/lib/apt/lists/* && \
     for VERSION in $ELIXIR_VERSIONS; do \
-      curl -fSsL "https://github.com/elixir-lang/elixir/releases/download/v$VERSION/Precompiled.zip" -o /tmp/elixir-$VERSION.zip && \
-      unzip -d /usr/local/elixir-$VERSION /tmp/elixir-$VERSION.zip && \
-      rm -rf /tmp/*; \
+    curl -fSsL "https://github.com/elixir-lang/elixir/releases/download/v$VERSION/elixir-otp-27.zip" -o /tmp/elixir-$VERSION.zip && \
+    unzip -d /usr/local/elixir-$VERSION /tmp/elixir-$VERSION.zip && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.rust-lang.org
-ENV RUST_VERSIONS \
-      1.40.0
+# ─────────────────────────────────────────────
+# Rust 1.87.0  (pre-built, min glibc 2.17 — works on Buster 2.28)
+# https://www.rust-lang.org
+# ─────────────────────────────────────────────
+ENV RUST_VERSIONS="1.87.0"
 RUN set -xe && \
     for VERSION in $RUST_VERSIONS; do \
-      curl -fSsL "https://static.rust-lang.org/dist/rust-$VERSION-x86_64-unknown-linux-gnu.tar.gz" -o /tmp/rust-$VERSION.tar.gz && \
-      mkdir /tmp/rust-$VERSION && \
-      tar -xf /tmp/rust-$VERSION.tar.gz -C /tmp/rust-$VERSION --strip-components=1 && \
-      rm /tmp/rust-$VERSION.tar.gz && \
-      cd /tmp/rust-$VERSION && \
-      ./install.sh \
-        --prefix=/usr/local/rust-$VERSION \
-        --components=rustc,rust-std-x86_64-unknown-linux-gnu && \
-      rm -rf /tmp/*; \
+    curl -fSsL "https://static.rust-lang.org/dist/rust-$VERSION-x86_64-unknown-linux-gnu.tar.gz" -o /tmp/rust-$VERSION.tar.gz && \
+    mkdir /tmp/rust-$VERSION && \
+    tar -xf /tmp/rust-$VERSION.tar.gz -C /tmp/rust-$VERSION --strip-components=1 && \
+    rm /tmp/rust-$VERSION.tar.gz && \
+    cd /tmp/rust-$VERSION && \
+    ./install.sh \
+    --prefix=/usr/local/rust-$VERSION \
+    --components=rustc,rust-std-x86_64-unknown-linux-gnu && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://golang.org/dl
-ENV GO_VERSIONS \
-      1.13.5
+# ─────────────────────────────────────────────
+# .NET 8.0 LTS  (runtime 8.0.15 — Debian 10 officially supported)
+# https://github.com/dotnet/sdk/releases
+# ─────────────────────────────────────────────
 RUN set -xe && \
-    for VERSION in $GO_VERSIONS; do \
-      curl -fSsL "https://storage.googleapis.com/golang/go$VERSION.linux-amd64.tar.gz" -o /tmp/go-$VERSION.tar.gz && \
-      mkdir /usr/local/go-$VERSION && \
-      tar -xf /tmp/go-$VERSION.tar.gz -C /usr/local/go-$VERSION --strip-components=1 && \
-      rm -rf /tmp/*; \
-    done
+    curl -fSsL "https://dot.net/v1/dotnet-install.sh" -o /tmp/dotnet-install.sh && \
+    chmod +x /tmp/dotnet-install.sh && \
+    /tmp/dotnet-install.sh --channel 8.0 --install-dir /usr/local/dotnet-8.0 && \
+    rm /tmp/dotnet-install.sh
 
-# Check for latest version here: https://sourceforge.net/projects/fbc/files/Binaries%20-%20Linux
-ENV FBC_VERSIONS \
-      1.07.1
+# ─────────────────────────────────────────────
+# GNU COBOL 3.2
+# https://ftp.gnu.org/gnu/gnucobol
+# ─────────────────────────────────────────────
+ENV COBOL_VERSIONS="3.2"
 RUN set -xe && \
-    for VERSION in $FBC_VERSIONS; do \
-      curl -fSsL "https://downloads.sourceforge.net/project/fbc/Binaries%20-%20Linux/FreeBASIC-$VERSION-linux-x86_64.tar.gz" -o /tmp/fbc-$VERSION.tar.gz && \
-      mkdir /usr/local/fbc-$VERSION && \
-      tar -xf /tmp/fbc-$VERSION.tar.gz -C /usr/local/fbc-$VERSION --strip-components=1 && \
-      rm -rf /tmp/*; \
-    done
-
-# Check for latest version here: https://github.com/ocaml/ocaml/releases
-ENV OCAML_VERSIONS \
-      4.09.0
-RUN set -xe && \
-    for VERSION in $OCAML_VERSIONS; do \
-      curl -fSsL "https://github.com/ocaml/ocaml/archive/$VERSION.tar.gz" -o /tmp/ocaml-$VERSION.tar.gz && \
-      mkdir /tmp/ocaml-$VERSION && \
-      tar -xf /tmp/ocaml-$VERSION.tar.gz -C /tmp/ocaml-$VERSION --strip-components=1 && \
-      rm /tmp/ocaml-$VERSION.tar.gz && \
-      cd /tmp/ocaml-$VERSION && \
-      ./configure \
-        -prefix /usr/local/ocaml-$VERSION \
-        --disable-ocamldoc --disable-debugger && \
-      make -j$(nproc) world.opt && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+    apt-get update && \
+    apt-get install -y --no-install-recommends libgmp-dev && \
+    rm -rf /var/lib/apt/lists/* && \
+    for VERSION in $COBOL_VERSIONS; do \
+    curl -fSsL "https://ftp.gnu.org/gnu/gnucobol/gnucobol-$VERSION.tar.xz" -o /tmp/gnucobol-$VERSION.tar.xz && \
+    mkdir /tmp/gnucobol-$VERSION && \
+    tar -xf /tmp/gnucobol-$VERSION.tar.xz -C /tmp/gnucobol-$VERSION --strip-components=1 && \
+    rm /tmp/gnucobol-$VERSION.tar.xz && \
+    cd /tmp/gnucobol-$VERSION && \
+    ./configure \
+    --prefix=/usr/local/gnucobol-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://www.php.net/downloads
-ENV PHP_VERSIONS \
-      7.4.1
+# ─────────────────────────────────────────────
+# Environment paths for all installed languages
+# ─────────────────────────────────────────────
+ENV JAVA_HOME="/usr/local/jdk-21.0.7"
+ENV GOROOT="/usr/local/go-1.24.3"
+ENV GOPATH="/root/go"
+ENV LD_LIBRARY_PATH="/usr/local/gcc-14.2.0/lib64"
+ENV COB_CONFIG_DIR="/usr/local/gnucobol-3.2/share/gnucobol/config"
+ENV COB_COPY_DIR="/usr/local/gnucobol-3.2/share/gnucobol/copy"
+ENV PATH="/usr/local/gcc-14.2.0/bin:\
+    /usr/local/ruby-3.3.7/bin:\
+    /usr/local/python-3.12.9/bin:\
+    /usr/local/node-22.15.0/bin:\
+    /usr/local/jdk-21.0.7/bin:\
+    /usr/local/php-8.3.19/bin:\
+    /usr/local/go-1.24.3/bin:\
+    /usr/local/kotlin-2.0.21/bin:\
+    /usr/local/erlang-27.3/bin:\
+    /usr/local/elixir-1.18.3/bin:\
+    /usr/local/rust-1.87.0/bin:\
+    /usr/local/dotnet-8.0:\
+    /usr/local/gnucobol-3.2/bin:\
+    ${PATH}"
+
+# ─────────────────────────────────────────────
+# Locale setup
+# ─────────────────────────────────────────────
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends bison re2c && \
+    apt-get install -y --no-install-recommends locales && \
     rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $PHP_VERSIONS; do \
-      curl -fSsL "https://codeload.github.com/php/php-src/tar.gz/php-$VERSION" -o /tmp/php-$VERSION.tar.gz && \
-      mkdir /tmp/php-$VERSION && \
-      tar -xf /tmp/php-$VERSION.tar.gz -C /tmp/php-$VERSION --strip-components=1 && \
-      rm /tmp/php-$VERSION.tar.gz && \
-      cd /tmp/php-$VERSION && \
-      ./buildconf --force && \
-      ./configure \
-        --prefix=/usr/local/php-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
-    done
+    echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && \
+    locale-gen
+ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8
 
-# Check for latest version here: https://dlang.org/download.html#dmd
-ENV D_VERSIONS \
-      2.089.1
+# ─────────────────────────────────────────────
+# judge0 isolate sandbox
+# ─────────────────────────────────────────────
 RUN set -xe && \
-    for VERSION in $D_VERSIONS; do \
-      curl -fSsL "http://downloads.dlang.org/releases/2.x/$VERSION/dmd.$VERSION.linux.tar.xz" -o /tmp/d-$VERSION.tar.gz && \
-      mkdir /usr/local/d-$VERSION && \
-      tar -xf /tmp/d-$VERSION.tar.gz -C /usr/local/d-$VERSION --strip-components=1 && \
-      rm -rf /usr/local/d-$VERSION/linux/*32 && \
-      rm -rf /tmp/*; \
-    done
+    apt-get update && \
+    apt-get install -y --no-install-recommends git libcap-dev && \
+    rm -rf /var/lib/apt/lists/* && \
+    git clone https://github.com/judge0/isolate.git /tmp/isolate && \
+    cd /tmp/isolate && \
+    git checkout ad39cc4d0fbb577fb545910095c9da5ef8fc9a1a && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*
+ENV BOX_ROOT="/var/local/lib/isolate"
 
-# Check for latest version here: https://www.lua.org/download.html
-ENV LUA_VERSIONS \
-      5.3.5
-RUN set -xe && \
-    for VERSION in $LUA_VERSIONS; do \
-      curl -fSsL "https://downloads.sourceforge.net/project/luabinaries/$VERSION/Tools%20Executables/lua-${VERSION}_Linux44_64_bin.tar.gz" -o /tmp/lua-$VERSION.tar.gz && \
-      mkdir /usr/local/lua-$VERSION && \
-      tar -xf /tmp/lua-$VERSION.tar.gz -C /usr/local/lua-$VERSION && \
-      rm -rf /tmp/*; \
-    done; \
-    ln -s /lib/x86_64-linux-gnu/libreadline.so.7 /lib/x86_64-linux-gnu/libreadline.so.6
+LABEL maintainer="Herman Zvonimir Došilović <hermanz.dosilovic@gmail.com>"
+LABEL version="1.4.0"
+
+# Base image: buildpack-deps:buster (Debian 10)
+# https://hub.docker.com/_/buildpack-deps?tab=tags&page=1&name=buster
+FROM judge0/buildpack-deps:buster-2019-12-28
 
-# Check for latest version here: https://github.com/microsoft/TypeScript/releases
-ENV TYPESCRIPT_VERSIONS \
-      3.7.4
+# Debian Buster is EOL — redirect apt to archive.debian.org
+RUN printf "deb http://archive.debian.org/debian buster main\ndeb http://archive.debian.org/debian-security buster/updates main\n" > /etc/apt/sources.list
+
+# ─────────────────────────────────────────────
+# GCC 14.2.0  (covers both C and C++)
+# https://gcc.gnu.org/releases.html
+# GCC 14 requires a C11-capable host — install gcc-9 as bootstrap
+# ─────────────────────────────────────────────
+ENV GCC_VERSIONS="14.2.0"
 RUN set -xe && \
-    curl -fSsL "https://deb.nodesource.com/setup_12.x" | bash - && \
     apt-get update && \
-    apt-get install -y --no-install-recommends nodejs && \
+    apt-get install -y --no-install-recommends gcc-9 g++-9 && \
     rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $TYPESCRIPT_VERSIONS; do \
-      npm install -g typescript@$VERSION; \
+    for VERSION in $GCC_VERSIONS; do \
+    curl -fSsL "https://ftpmirror.gnu.org/gcc/gcc-$VERSION/gcc-$VERSION.tar.gz" -o /tmp/gcc-$VERSION.tar.gz && \
+    mkdir /tmp/gcc-$VERSION && \
+    tar -xf /tmp/gcc-$VERSION.tar.gz -C /tmp/gcc-$VERSION --strip-components=1 && \
+    rm /tmp/gcc-$VERSION.tar.gz && \
+    cd /tmp/gcc-$VERSION && \
+    ./contrib/download_prerequisites && \
+    { rm *.tar.* || true; } && \
+    tmpdir="$(mktemp -d)" && \
+    cd "$tmpdir" && \
+    CC=gcc-9 CXX=g++-9 /tmp/gcc-$VERSION/configure \
+    --disable-multilib \
+    --enable-languages=c,c++,fortran \
+    --prefix=/usr/local/gcc-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install-strip && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://nasm.us
-ENV NASM_VERSIONS \
-      2.14.02
-RUN set -xe && \
-    for VERSION in $NASM_VERSIONS; do \
-      curl -fSsL "https://www.nasm.us/pub/nasm/releasebuilds/$VERSION/nasm-$VERSION.tar.gz" -o /tmp/nasm-$VERSION.tar.gz && \
-      mkdir /tmp/nasm-$VERSION && \
-      tar -xf /tmp/nasm-$VERSION.tar.gz -C /tmp/nasm-$VERSION --strip-components=1 && \
-      rm /tmp/nasm-$VERSION.tar.gz && \
-      cd /tmp/nasm-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/nasm-$VERSION && \
-      make -j$(nproc) nasm ndisasm && \
-      make -j$(nproc) strip && \
-      make -j$(nproc) install && \
-      echo "/usr/local/nasm-$VERSION/bin/nasm -o main.o \$@ && ld main.o" >> /usr/local/nasm-$VERSION/bin/nasmld && \
-      chmod +x /usr/local/nasm-$VERSION/bin/nasmld && \
-      rm -rf /tmp/*; \
+# ─────────────────────────────────────────────
+# Ruby 3.3.7
+# https://www.ruby-lang.org/en/downloads
+# ─────────────────────────────────────────────
+ENV RUBY_VERSIONS="3.3.7"
+RUN set -xe && \
+    for VERSION in $RUBY_VERSIONS; do \
+    curl -fSsL "https://cache.ruby-lang.org/pub/ruby/${VERSION%.*}/ruby-$VERSION.tar.gz" -o /tmp/ruby-$VERSION.tar.gz && \
+    mkdir /tmp/ruby-$VERSION && \
+    tar -xf /tmp/ruby-$VERSION.tar.gz -C /tmp/ruby-$VERSION --strip-components=1 && \
+    rm /tmp/ruby-$VERSION.tar.gz && \
+    cd /tmp/ruby-$VERSION && \
+    ./configure \
+    --disable-install-doc \
+    --prefix=/usr/local/ruby-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: http://gprolog.org/#download
-ENV GPROLOG_VERSIONS \
-      1.4.5
-RUN set -xe && \
-    for VERSION in $GPROLOG_VERSIONS; do \
-      curl -fSsL "http://gprolog.org/gprolog-$VERSION.tar.gz" -o /tmp/gprolog-$VERSION.tar.gz && \
-      mkdir /tmp/gprolog-$VERSION && \
-      tar -xf /tmp/gprolog-$VERSION.tar.gz -C /tmp/gprolog-$VERSION --strip-components=1 && \
-      rm /tmp/gprolog-$VERSION.tar.gz && \
-      cd /tmp/gprolog-$VERSION/src && \
-      ./configure \
-        --prefix=/usr/local/gprolog-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install-strip && \
-      rm -rf /tmp/*; \
+# ─────────────────────────────────────────────
+# Python 3.12.9
+# https://www.python.org/downloads
+# ─────────────────────────────────────────────
+ENV PYTHON_VERSIONS="3.12.9"
+RUN set -xe && \
+    for VERSION in $PYTHON_VERSIONS; do \
+    curl -fSsL "https://www.python.org/ftp/python/$VERSION/Python-$VERSION.tar.xz" -o /tmp/python-$VERSION.tar.xz && \
+    mkdir /tmp/python-$VERSION && \
+    tar -xf /tmp/python-$VERSION.tar.xz -C /tmp/python-$VERSION --strip-components=1 && \
+    rm /tmp/python-$VERSION.tar.xz && \
+    cd /tmp/python-$VERSION && \
+    ./configure \
+    --prefix=/usr/local/python-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: http://www.sbcl.org/platform-table.html
-ENV SBCL_VERSIONS \
-      2.0.0
+# ─────────────────────────────────────────────
+# Node.js 22.15.0 LTS  (pre-built binary)
+# https://nodejs.org/en
+# ─────────────────────────────────────────────
+ENV NODE_VERSIONS="22.15.0"
 RUN set -xe && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends bison re2c && \
-    rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $SBCL_VERSIONS; do \
-      curl -fSsL "https://downloads.sourceforge.net/project/sbcl/sbcl/$VERSION/sbcl-$VERSION-x86-64-linux-binary.tar.bz2" -o /tmp/sbcl-$VERSION.tar.bz2 && \
-      mkdir /tmp/sbcl-$VERSION && \
-      tar -xf /tmp/sbcl-$VERSION.tar.bz2 -C /tmp/sbcl-$VERSION --strip-components=1 && \
-      cd /tmp/sbcl-$VERSION && \
-      export INSTALL_ROOT=/usr/local/sbcl-$VERSION && \
-      sh install.sh && \
-      rm -rf /tmp/*; \
+    for VERSION in $NODE_VERSIONS; do \
+    curl -fSsL "https://nodejs.org/dist/v$VERSION/node-v$VERSION-linux-x64.tar.xz" -o /tmp/node-$VERSION.tar.xz && \
+    mkdir /usr/local/node-$VERSION && \
+    tar -xf /tmp/node-$VERSION.tar.xz -C /usr/local/node-$VERSION --strip-components=1 && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://ftp.gnu.org/gnu/gnucobol
-ENV COBOL_VERSIONS \
-      2.2
-RUN set -xe && \
-    for VERSION in $COBOL_VERSIONS; do \
-      curl -fSsL "https://ftp.gnu.org/gnu/gnucobol/gnucobol-$VERSION.tar.xz" -o /tmp/gnucobol-$VERSION.tar.xz && \
-      mkdir /tmp/gnucobol-$VERSION && \
-      tar -xf /tmp/gnucobol-$VERSION.tar.xz -C /tmp/gnucobol-$VERSION --strip-components=1 && \
-      rm /tmp/gnucobol-$VERSION.tar.xz && \
-      cd /tmp/gnucobol-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/gnucobol-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
+# ─────────────────────────────────────────────
+# JDK 21.0.7 LTS  (Eclipse Temurin, pre-built)
+# https://adoptium.net/temurin/releases
+# ─────────────────────────────────────────────
+ENV JDK_VERSIONS="21.0.7"
+RUN set -xe && \
+    for VERSION in $JDK_VERSIONS; do \
+    curl -fSsL "https://github.com/adoptium/temurin21-binaries/releases/download/jdk-${VERSION}%2B6/OpenJDK21U-jdk_x64_linux_hotspot_${VERSION}_6.tar.gz" -o /tmp/jdk-$VERSION.tar.gz && \
+    mkdir /usr/local/jdk-$VERSION && \
+    tar -xf /tmp/jdk-$VERSION.tar.gz -C /usr/local/jdk-$VERSION --strip-components=1 && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://swift.org/download
-ENV SWIFT_VERSIONS \
-      5.2.3
+# ─────────────────────────────────────────────
+# PHP 8.3.19
+# https://www.php.net/downloads
+# ─────────────────────────────────────────────
+ENV PHP_VERSIONS="8.3.19"
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends libncurses5 && \
+    apt-get install -y --no-install-recommends bison re2c libxml2-dev libssl-dev pkg-config && \
     rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $SWIFT_VERSIONS; do \
-      curl -fSsL "https://swift.org/builds/swift-$VERSION-release/ubuntu1804/swift-$VERSION-RELEASE/swift-$VERSION-RELEASE-ubuntu18.04.tar.gz" -o /tmp/swift-$VERSION.tar.gz && \
-      mkdir /usr/local/swift-$VERSION && \
-      tar -xf /tmp/swift-$VERSION.tar.gz -C /usr/local/swift-$VERSION --strip-components=2 && \
-      rm -rf /tmp/*; \
+    for VERSION in $PHP_VERSIONS; do \
+    curl -fSsL "https://www.php.net/distributions/php-$VERSION.tar.xz" -o /tmp/php-$VERSION.tar.xz && \
+    mkdir /tmp/php-$VERSION && \
+    tar -xf /tmp/php-$VERSION.tar.xz -C /tmp/php-$VERSION --strip-components=1 && \
+    rm /tmp/php-$VERSION.tar.xz && \
+    cd /tmp/php-$VERSION && \
+    ./buildconf --force && \
+    ./configure \
+    --prefix=/usr/local/php-$VERSION \
+    --with-openssl \
+    --with-zlib && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://kotlinlang.org
-ENV KOTLIN_VERSIONS \
-      1.3.70
+# ─────────────────────────────────────────────
+# Go 1.24.3  (pre-built binary)
+# https://golang.org/dl
+# ─────────────────────────────────────────────
+ENV GO_VERSIONS="1.24.3"
 RUN set -xe && \
-    for VERSION in $KOTLIN_VERSIONS; do \
-      curl -fSsL "https://github.com/JetBrains/kotlin/releases/download/v$VERSION/kotlin-compiler-$VERSION.zip" -o /tmp/kotlin-$VERSION.zip && \
-      unzip -d /usr/local/kotlin-$VERSION /tmp/kotlin-$VERSION.zip && \
-      mv /usr/local/kotlin-$VERSION/kotlinc/* /usr/local/kotlin-$VERSION/ && \
-      rm -rf /usr/local/kotlin-$VERSION/kotlinc && \
-      rm -rf /tmp/*; \
+    for VERSION in $GO_VERSIONS; do \
+    curl -fSsL "https://go.dev/dl/go$VERSION.linux-amd64.tar.gz" -o /tmp/go-$VERSION.tar.gz && \
+    mkdir /usr/local/go-$VERSION && \
+    tar -xf /tmp/go-$VERSION.tar.gz -C /usr/local/go-$VERSION --strip-components=1 && \
+    rm -rf /tmp/*; \
     done
 
-# Check for latest version here: https://hub.docker.com/_/mono
-# I currently use this to add support for Visual Basic.Net but this can be also
-# used to support C# language which has been already supported but with manual
-# installation of Mono (see above).
-ENV MONO_VERSION 6.6.0.161
+# ─────────────────────────────────────────────
+# Kotlin 2.0.21  (pre-built, requires JDK 21)
+# https://kotlinlang.org
+# ─────────────────────────────────────────────
+ENV KOTLIN_VERSIONS="2.0.21"
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends gnupg dirmngr && \
+    apt-get install -y --no-install-recommends unzip && \
     rm -rf /var/lib/apt/lists/* && \
-    export GNUPGHOME="$(mktemp -d)" && \
-    gpg --batch --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF && \
-    gpg --batch --export --armor 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF > /etc/apt/trusted.gpg.d/mono.gpg.asc && \
-    gpgconf --kill all && \
-    rm -rf "$GNUPGHOME" && \
-    apt-key list | grep Xamarin && \
-    apt-get purge -y --auto-remove gnupg dirmngr && \
-    echo "deb http://download.mono-project.com/repo/debian stable-stretch/snapshots/$MONO_VERSION main" > /etc/apt/sources.list.d/mono-official-stable.list && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends mono-vbnc && \
-    rm -rf /var/lib/apt/lists/* /tmp/*
+    for VERSION in $KOTLIN_VERSIONS; do \
+    curl -fSsL "https://github.com/JetBrains/kotlin/releases/download/v$VERSION/kotlin-compiler-$VERSION.zip" -o /tmp/kotlin-$VERSION.zip && \
+    unzip -d /usr/local/kotlin-$VERSION /tmp/kotlin-$VERSION.zip && \
+    mv /usr/local/kotlin-$VERSION/kotlinc/* /usr/local/kotlin-$VERSION/ && \
+    rm -rf /usr/local/kotlin-$VERSION/kotlinc && \
+    rm -rf /tmp/*; \
+    done
 
-# Check for latest version here: https://packages.debian.org/buster/clang-7
-# Used for additional compilers for C, C++ and used for Objective-C.
+# ─────────────────────────────────────────────
+# TypeScript 5.4.5  (npm global, uses Node 22.15.0)
+# https://github.com/microsoft/TypeScript/releases
+# ─────────────────────────────────────────────
+ENV TYPESCRIPT_VERSIONS="5.4.5"
 RUN set -xe && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends clang-7 gnustep-devel && \
-    rm -rf /var/lib/apt/lists/*
+    for VERSION in $TYPESCRIPT_VERSIONS; do \
+    PATH="/usr/local/node-22.15.0/bin:$PATH" npm install -g typescript@$VERSION; \
+    done
 
-# Check for latest version here: https://cloud.r-project.org/src/base
-ENV R_VERSIONS \
-      4.0.0
+# ─────────────────────────────────────────────
+# Erlang/OTP 27.3  (required by Elixir)
+# https://github.com/erlang/otp/releases
+# ─────────────────────────────────────────────
+ENV ERLANG_VERSIONS="27.3"
 RUN set -xe && \
     apt-get update && \
-    apt-get install -y --no-install-recommends libpcre2-dev && \
+    apt-get install -y --no-install-recommends libssl-dev libncurses-dev autoconf && \
     rm -rf /var/lib/apt/lists/* && \
-    for VERSION in $R_VERSIONS; do \
-      curl -fSsL "https://cloud.r-project.org/src/base/R-4/R-$VERSION.tar.gz" -o /tmp/r-$VERSION.tar.gz && \
-      mkdir /tmp/r-$VERSION && \
-      tar -xf /tmp/r-$VERSION.tar.gz -C /tmp/r-$VERSION --strip-components=1 && \
-      rm /tmp/r-$VERSION.tar.gz && \
-      cd /tmp/r-$VERSION && \
-      ./configure \
-        --prefix=/usr/local/r-$VERSION && \
-      make -j$(nproc) && \
-      make -j$(nproc) install && \
-      rm -rf /tmp/*; \
-    done
+    for VERSION in $ERLANG_VERSIONS; do \
+    curl -fSsL "https://github.com/erlang/otp/archive/OTP-$VERSION.tar.gz" -o /tmp/erlang-$VERSION.tar.gz && \
+    mkdir /tmp/erlang-$VERSION && \
+    tar -xf /tmp/erlang-$VERSION.tar.gz -C /tmp/erlang-$VERSION --strip-components=1 && \
+    rm /tmp/erlang-$VERSION.tar.gz && \
+    cd /tmp/erlang-$VERSION && \
+    ./otp_build autoconf && \
+    ./configure \
+    --prefix=/usr/local/erlang-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
+    done; \
+    ln -s /usr/local/erlang-27.3/bin/erl /usr/local/bin/erl
 
-# Check for latest version here: https://packages.debian.org/buster/sqlite3
-# Used for support of SQLite.
+# ─────────────────────────────────────────────
+# Elixir 1.18.3  (pre-built OTP-27 zip)
+# https://github.com/elixir-lang/elixir/releases
+# ─────────────────────────────────────────────
+ENV ELIXIR_VERSIONS="1.18.3"
 RUN set -xe && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends sqlite3 && \
-    rm -rf /var/lib/apt/lists/*
-
-# Check for latest version here: https://scala-lang.org
-ENV SCALA_VERSIONS \
-      2.13.2
-RUN set -xe && \
-    for VERSION in $SCALA_VERSIONS; do \
-      curl -fSsL "https://downloads.lightbend.com/scala/$VERSION/scala-$VERSION.tgz" -o /tmp/scala-$VERSION.tgz && \
-      mkdir /usr/local/scala-$VERSION && \
-      tar -xf /tmp/scala-$VERSION.tgz -C /usr/local/scala-$VERSION --strip-components=1 && \
-      rm -rf /tmp/*; \
+    for VERSION in $ELIXIR_VERSIONS; do \
+    curl -fSsL "https://github.com/elixir-lang/elixir/releases/download/v$VERSION/elixir-otp-27.zip" -o /tmp/elixir-$VERSION.zip && \
+    unzip -d /usr/local/elixir-$VERSION /tmp/elixir-$VERSION.zip && \
+    rm -rf /tmp/*; \
     done
 
-# Support for Perl came "for free" since it is already installed.
+# ─────────────────────────────────────────────
+# Rust 1.87.0  (pre-built, min glibc 2.17 — works on Buster 2.28)
+# https://www.rust-lang.org
+# ─────────────────────────────────────────────
+ENV RUST_VERSIONS="1.87.0"
+RUN set -xe && \
+    for VERSION in $RUST_VERSIONS; do \
+    curl -fSsL "https://static.rust-lang.org/dist/rust-$VERSION-x86_64-unknown-linux-gnu.tar.gz" -o /tmp/rust-$VERSION.tar.gz && \
+    mkdir /tmp/rust-$VERSION && \
+    tar -xf /tmp/rust-$VERSION.tar.gz -C /tmp/rust-$VERSION --strip-components=1 && \
+    rm /tmp/rust-$VERSION.tar.gz && \
+    cd /tmp/rust-$VERSION && \
+    ./install.sh \
+    --prefix=/usr/local/rust-$VERSION \
+    --components=rustc,rust-std-x86_64-unknown-linux-gnu && \
+    rm -rf /tmp/*; \
+    done
 
-# Check for latest version here: https://github.com/clojure/clojure/releases
-ENV CLOJURE_VERSION 1.10.1
+# ─────────────────────────────────────────────
+# .NET 8.0 LTS  (runtime 8.0.15 — Debian 10 officially supported)
+# https://github.com/dotnet/sdk/releases
+# ─────────────────────────────────────────────
 RUN set -xe && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends maven && \
-    cd /tmp && \
-    git clone https://github.com/clojure/clojure && \
-    cd clojure && \
-    git checkout clojure-$CLOJURE_VERSION && \
-    mvn -Plocal -Dmaven.test.skip=true package && \
-    mkdir /usr/local/clojure-$CLOJURE_VERSION && \
-    cp clojure.jar /usr/local/clojure-$CLOJURE_VERSION && \
-    apt-get remove --purge -y maven && \
-    rm -rf /var/lib/apt/lists/* /tmp/*
-
-# Check for latest version here: https://github.com/dotnet/sdk/releases
-RUN set -xe && \
-    curl -fSsL "https://download.visualstudio.microsoft.com/download/pr/7d4c708b-38db-48b2-8532-9fc8a3ab0e42/23229fd17482119822bd9261b3570d87/dotnet-sdk-3.1.202-linux-x64.tar.gz" -o /tmp/dotnet.tar.gz && \
-    mkdir /usr/local/dotnet-sdk && \
-    tar -xf /tmp/dotnet.tar.gz -C /usr/local/dotnet-sdk && \
-    rm -rf /tmp/*
+    curl -fSsL "https://dot.net/v1/dotnet-install.sh" -o /tmp/dotnet-install.sh && \
+    chmod +x /tmp/dotnet-install.sh && \
+    /tmp/dotnet-install.sh --channel 8.0 --install-dir /usr/local/dotnet-8.0 && \
+    rm /tmp/dotnet-install.sh
 
-# Check for latest version here: https://groovy.apache.org/download.html
+# ─────────────────────────────────────────────
+# GNU COBOL 3.2
+# https://ftp.gnu.org/gnu/gnucobol
+# ─────────────────────────────────────────────
+ENV COBOL_VERSIONS="3.2"
 RUN set -xe && \
-    curl -fSsL "https://dl.bintray.com/groovy/maven/apache-groovy-binary-3.0.3.zip" -o /tmp/groovy.zip && \
-    unzip /tmp/groovy.zip -d /usr/local && \
-    rm -rf /tmp/*
+    apt-get update && \
+    apt-get install -y --no-install-recommends libgmp-dev && \
+    rm -rf /var/lib/apt/lists/* && \
+    for VERSION in $COBOL_VERSIONS; do \
+    curl -fSsL "https://ftp.gnu.org/gnu/gnucobol/gnucobol-$VERSION.tar.xz" -o /tmp/gnucobol-$VERSION.tar.xz && \
+    mkdir /tmp/gnucobol-$VERSION && \
+    tar -xf /tmp/gnucobol-$VERSION.tar.xz -C /tmp/gnucobol-$VERSION --strip-components=1 && \
+    rm /tmp/gnucobol-$VERSION.tar.xz && \
+    cd /tmp/gnucobol-$VERSION && \
+    ./configure \
+    --prefix=/usr/local/gnucobol-$VERSION && \
+    make -j$(nproc) && \
+    make -j$(nproc) install && \
+    rm -rf /tmp/*; \
+    done
 
+# ─────────────────────────────────────────────
+# Environment paths for all installed languages
+# ─────────────────────────────────────────────
+ENV JAVA_HOME="/usr/local/jdk-21.0.7"
+ENV GOROOT="/usr/local/go-1.24.3"
+ENV GOPATH="/root/go"
+ENV LD_LIBRARY_PATH="/usr/local/gcc-14.2.0/lib64"
+ENV COB_CONFIG_DIR="/usr/local/gnucobol-3.2/share/gnucobol/config"
+ENV COB_COPY_DIR="/usr/local/gnucobol-3.2/share/gnucobol/copy"
+ENV PATH="/usr/local/gcc-14.2.0/bin:\
+    /usr/local/ruby-3.3.7/bin:\
+    /usr/local/python-3.12.9/bin:\
+    /usr/local/node-22.15.0/bin:\
+    /usr/local/jdk-21.0.7/bin:\
+    /usr/local/php-8.3.19/bin:\
+    /usr/local/go-1.24.3/bin:\
+    /usr/local/kotlin-2.0.21/bin:\
+    /usr/local/erlang-27.3/bin:\
+    /usr/local/elixir-1.18.3/bin:\
+    /usr/local/rust-1.87.0/bin:\
+    /usr/local/dotnet-8.0:\
+    /usr/local/gnucobol-3.2/bin:\
+    ${PATH}"
+
+# ─────────────────────────────────────────────
+# Swift 6.1  — COMMENTED OUT
+# Requires glibc 2.34+, Debian Buster only has 2.28
+# Upgrade base image to use Swift 6.1
+# https://swift.org/download
+# ─────────────────────────────────────────────
+# ENV SWIFT_VERSIONS="6.1"
+# RUN set -xe && \
+#     apt-get update && \
+#     apt-get install -y --no-install-recommends libncurses5 && \
+#     rm -rf /var/lib/apt/lists/* && \
+#     for VERSION in $SWIFT_VERSIONS; do \
+#       curl -fSsL "https://download.swift.org/swift-$VERSION-release/ubuntu2204/swift-$VERSION-RELEASE/swift-$VERSION-RELEASE-ubuntu22.04.tar.gz" -o /tmp/swift-$VERSION.tar.gz && \
+#       mkdir /usr/local/swift-$VERSION && \
+#       tar -xf /tmp/swift-$VERSION.tar.gz -C /usr/local/swift-$VERSION --strip-components=2 && \
+#       rm -rf /tmp/*; \
+#     done
+
+# ─────────────────────────────────────────────
+# Locale setup
+# ─────────────────────────────────────────────
 RUN set -xe && \
     apt-get update && \
     apt-get install -y --no-install-recommends locales && \
@@ -534,6 +607,9 @@ RUN set -xe && \
     locale-gen
 ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8
 
+# ─────────────────────────────────────────────
+# judge0 isolate sandbox
+# ─────────────────────────────────────────────
 RUN set -xe && \
     apt-get update && \
     apt-get install -y --no-install-recommends git libcap-dev && \
@@ -543,7 +619,7 @@ RUN set -xe && \
     git checkout ad39cc4d0fbb577fb545910095c9da5ef8fc9a1a && \
     make -j$(nproc) install && \
     rm -rf /tmp/*
-ENV BOX_ROOT /var/local/lib/isolate
+ENV BOX_ROOT="/var/local/lib/isolate"
 
 LABEL maintainer="Herman Zvonimir Došilović <hermanz.dosilovic@gmail.com>"
 LABEL version="1.4.0"