Revert "Revert precompiled ruby due to issues"

This reverts commit 86f7cb6f712292694aefbd851829746bc31a2491.

builder/offline.sh

@@ -10,6 +10,7 @@ pacman --noconfirm -Sy archiso git python-pip sudo base-devel jq
 
 build_cache_dir="/var/cache"
 offline_mirror_dir="$build_cache_dir/airootfs/var/cache/omarchy/mirror/offline"
+offline_ruby_dir="$build_cache_dir/airootfs/var/cache/omarchy/ruby"
 
 # We need to fiddle with pip settings
 # in order to install to the correct place
@@ -83,6 +84,7 @@ make_archiso_offline() {
 
 mkdir -p $build_cache_dir/
 mkdir -p $offline_mirror_dir/
+mkdir -p $offline_ruby_dir/
 
 # We base our ISO on the official arch ISO (releng) config
 cp -r archiso/configs/releng/* $build_cache_dir/
@@ -104,6 +106,16 @@ cd -
 prepare_offline_mirror
 make_archiso_offline
 
+# Download Ruby tarball if not already cached
+ruby_tarball="ruby-3.4.5-rails-8.0.2.1-x86_64.tar.gz"
+if [ ! -f "$offline_ruby_dir/$ruby_tarball" ]; then
+  echo "Downloading Ruby tarball..."
+  curl -fsSL -o "$offline_ruby_dir/$ruby_tarball" \
+    "https://pkgs.omarchy.org/ruby/$ruby_tarball"
+else
+  echo "Ruby tarball already cached, skipping download"
+fi
+
 # Insert the configurator in the root users home folder (default user in the official releng ISO profile).
 mkdir -p "$build_cache_dir/airootfs/root"
 curl -fsSL -o "$build_cache_dir/airootfs/root/configurator" \