Fixed the installation script to handle arch based distributions without systemd

scripts/install.sh

@@ -544,22 +544,12 @@ install_packages() {
         warn "Bulk install failed for group '${group}' — retrying per package"
         for pkg in "${pkgs[@]}"; do
           local tmp2; tmp2=$(mktemp)
-          if [[ $IS_TTY == true ]]; then
-            spinner_start "  [${group}] $pkg"
-            if pacman_install "$pkg" >"$tmp2" 2>&1; then
+          spinner_start "  [${group}] $pkg"
+          if pacman_install "$pkg" >"$tmp2" 2>&1; then
               spinner_stop ok "[${group}] $pkg"; succeeded+=("$pkg")
-            else
+          else
               spinner_stop fail "[${group}] $pkg"
               warn "pacman output:"; cat "$tmp2" | indent; failed+=("$pkg")
-            fi
-          else
-            printf "  ...  [%s] %s\n" "$group" "$pkg"
-            if pacman_install "$pkg" >"$tmp2" 2>&1; then
-              ok "[${group}] $pkg"; succeeded+=("$pkg")
-            else
-              err "[${group}] $pkg"
-              warn "pacman output:"; cat "$tmp2" | indent; failed+=("$pkg")
-            fi
           fi
           rm -f "$tmp2"
         done
@@ -584,7 +574,12 @@ install_packages() {
 
   # Build the set of groups that are handled specially so we can exclude them
   # when iterating all .pkgs files for automatic groups.
-  local hw_groups=("${HW_CPU}-cpu" "${HW_GPU}-gpu")
+  # Here we add all known hardware group names. The unnecessary ones will be excluded
+
+  local hw_groups=(
+    intel-cpu amd-cpu
+    intel-gpu amd-gpu nvidia
+  )
   local optional_group_names=()
   local optional_file="$PACKAGES_DIR/optional.groups"
   if [[ -f $optional_file ]]; then
@@ -761,6 +756,14 @@ setup_waybar() {
 enable_services() {
   phase "Enabling services"
 
+  # Check systemd presence
+  which systemctl
+  if [ "$?" -ne 0 ]; then
+    warn "Systemd is not installed, skipping services activation"
+    info "You'll have to manually enable needed services"
+    return
+  fi
+  
   enable_service() {
     local svc="$1"
     if systemctl is-enabled "$svc" &>/dev/null; then