diff --git a/install-ruby-rvm.sh b/install-ruby-rvm.sh
new file mode 100644
index 0000000..b6dea27
--- /dev/null
+++ b/install-ruby-rvm.sh
@@ -0,0 +1,133 @@
+#!/usr/bin/env bash
+# Recompile Openssl 1.1.1w on RHEL9+ and install Old Rubies
+# Mateusz Gruszczyński @linuxiarz.pl
+
+set -eo pipefail
+
+OPENSSL_VERSION="1.1.1w"
+OPENSSL_PREFIX="/opt/openssl111"
+SRC_DIR="/usr/local/src"
+
+if [ "${EUID}" -ne 0 ]; then
+  echo "ERROR: run this script as root"
+  exit 1
+fi
+
+if [ $# -ne 1 ]; then
+  echo "Usage: $0 2.7.X"
+  exit 1
+fi
+
+RUBY_VERSION="$1"
+
+if [[ ! "${RUBY_VERSION}" =~ ^2\.7\.[0-9]+$ ]]; then
+  echo "ERROR: only Ruby 2.7.X is allowed"
+  echo "Example: $0 2.7.8"
+  exit 1
+fi
+
+load_rvm() {
+  if [ -s /etc/profile.d/rvm.sh ]; then
+    . /etc/profile.d/rvm.sh
+  elif [ -s /usr/local/rvm/scripts/rvm ]; then
+    . /usr/local/rvm/scripts/rvm
+  elif [ -s /root/.rvm/scripts/rvm ]; then
+    . /root/.rvm/scripts/rvm
+  else
+    echo "ERROR: RVM was not found"
+    exit 1
+  fi
+
+  if ! command -v rvm >/dev/null 2>&1; then
+    echo "ERROR: RVM is not available in this shell"
+    exit 1
+  fi
+}
+
+ruby_already_installed() {
+  if command -v ruby >/dev/null 2>&1; then
+    current_ruby_version="$(ruby -e 'print RUBY_VERSION' 2>/dev/null || true)"
+    if [ "${current_ruby_version}" = "${RUBY_VERSION}" ]; then
+      echo "Ruby ${RUBY_VERSION} is already available in PATH"
+      return 0
+    fi
+  fi
+
+  if rvm list strings | grep -Fxq "ruby-${RUBY_VERSION}"; then
+    echo "Ruby ${RUBY_VERSION} is already installed in RVM"
+    return 0
+  fi
+
+  return 1
+}
+
+install_build_dependencies() {
+  echo "[1/6] Installing build dependencies"
+  dnf groupinstall -y "Development Tools"
+  dnf install -y \
+    curl tar xz bzip2 git perl-core pkgconfig \
+    zlib-devel readline-devel libyaml-devel libffi-devel \
+    gdbm-devel ncurses-devel gmp-devel autoconf automake libtool bison
+}
+
+install_openssl() {
+  echo "[2/6] Preparing OpenSSL ${OPENSSL_VERSION}"
+  mkdir -p "${SRC_DIR}"
+  mkdir -p "${OPENSSL_PREFIX}"
+  cd "${SRC_DIR}"
+
+  if [ ! -f "openssl-${OPENSSL_VERSION}.tar.gz" ]; then
+    curl -fLO "https://www.openssl.org/source/old/1.1.1/openssl-${OPENSSL_VERSION}.tar.gz"
+  fi
+
+  rm -rf "openssl-${OPENSSL_VERSION}"
+  tar xf "openssl-${OPENSSL_VERSION}.tar.gz"
+  cd "openssl-${OPENSSL_VERSION}"
+
+  echo "[3/6] Building OpenSSL into ${OPENSSL_PREFIX}"
+  ./config \
+    --prefix="${OPENSSL_PREFIX}" \
+    --openssldir="${OPENSSL_PREFIX}" \
+    shared zlib
+
+  make -j"$(nproc)"
+  rm -rf "${OPENSSL_PREFIX:?}/"*
+  make install_sw
+}
+
+install_ruby_with_rvm() {
+  echo "[4/6] Configuring RVM build environment"
+  rvm autolibs disable
+
+  export CPPFLAGS="-I${OPENSSL_PREFIX}/include"
+  export CFLAGS="-I${OPENSSL_PREFIX}/include"
+  export LDFLAGS="-L${OPENSSL_PREFIX}/lib -Wl,-rpath,${OPENSSL_PREFIX}/lib"
+  export PKG_CONFIG_PATH="${OPENSSL_PREFIX}/lib/pkgconfig"
+  export RUBY_CONFIGURE_OPTS="--with-openssl-dir=${OPENSSL_PREFIX}"
+
+  echo "[5/6] Installing Ruby ${RUBY_VERSION} with RVM"
+  rvm install "${RUBY_VERSION}" --with-openssl-dir="${OPENSSL_PREFIX}"
+}
+
+verify_installation() {
+  echo "[6/6] Verifying installation"
+  rvm use "${RUBY_VERSION}" >/dev/null
+
+  installed_ruby_version="$(ruby -e 'print RUBY_VERSION')"
+  installed_openssl_version="$(ruby -ropenssl -e 'print OpenSSL::OPENSSL_VERSION')"
+
+  echo "Installed Ruby version: ${installed_ruby_version}"
+  echo "Linked OpenSSL version: ${installed_openssl_version}"
+}
+
+load_rvm
+
+if ruby_already_installed; then
+  echo "Nothing to do"
+  exit 0
+fi
+
+install_build_dependencies
+install_openssl
+install_ruby_with_rvm
+verify_installation
\ No newline at end of file