diff --git a/src/defs/usage.zsh b/src/defs/usage.zsh
index 9bc4bc7..ab14c76 100755
--- a/src/defs/usage.zsh
+++ b/src/defs/usage.zsh
@@ -10,7 +10,7 @@ usage() {
   active_tools=()
   deprecated_tools_found=()
 
-  for tool in ${(f)all_tools}; do
+  while IFS= read -r tool; do
     local is_deprecated=false
     for d in "${DEPRECATED_TOOLS[@]}"; do
       [[ "$tool" == "$d" ]] && is_deprecated=true && break
@@ -20,7 +20,7 @@ usage() {
     else
       active_tools+=("$tool")
     fi
-  done
+  done <<<"$all_tools"
 
   modes_str=$(array_str ", " "${modes[@]}")
   profiles_str=$(array_str "/" "${profiles[@]}")
diff --git a/src/installers/asdf.configure.zsh b/src/installers/asdf.configure.zsh
index 6801125..8b8f548 100644
--- a/src/installers/asdf.configure.zsh
+++ b/src/installers/asdf.configure.zsh
@@ -8,4 +8,3 @@ export ASDF_DIR="$CLI_CONFIG_ROOT/current/asdf"
 export ASDF_DATA_DIR="$CLI_CONFIG_ROOT/current/asdf"
 export PATH="$ASDF_DIR/bin:$PATH"
 EOF
-
diff --git a/src/installers/nvm.configure.zsh b/src/installers/nvm.configure.zsh
index b9e7d0e..acc721d 100755
--- a/src/installers/nvm.configure.zsh
+++ b/src/installers/nvm.configure.zsh
@@ -7,4 +7,3 @@ printf "# add nvm to path\n" >>$CONF
 printf 'export PATH="$NVM_DIR:$PATH"\n' >>$CONF
 # printf 'lazyload nvm node npm -- "source $NVM_DIR/nvm.sh"' >>$CONF
 # turn off lazyload until I figure out how to let it work with AI agents
-
diff --git a/src/scripts/setup.programs-conf.zsh b/src/scripts/setup.programs-conf.zsh
index 4b5d546..a5a5af9 100755
--- a/src/scripts/setup.programs-conf.zsh
+++ b/src/scripts/setup.programs-conf.zsh
@@ -1,19 +1,18 @@
 # generate main config script
 Log "Generating programs configuration"
-printf "# [Autogenerated - do not edit: at $(date)] CLI-Config Install configuration --------" > $CLI_CONFIG_PROGRAMS_CONF
-echo >> $CLI_CONFIG_PROGRAMS_CONF
+printf "# [Autogenerated - do not edit: at $(date)] CLI-Config Install configuration --------" >$CLI_CONFIG_PROGRAMS_CONF
+echo >>$CLI_CONFIG_PROGRAMS_CONF
 
-echo '# init all cli-config tools' >> $CLI_CONFIG_PROGRAMS_CONF
-echo 'autoload -Uz compinit && compinit' >> $CLI_CONFIG_PROGRAMS_CONF
+echo '# init all cli-config tools' >>$CLI_CONFIG_PROGRAMS_CONF
+echo 'autoload -Uz compinit && compinit' >>$CLI_CONFIG_PROGRAMS_CONF
 
 # plugin manager must be sourced first so lazyload is available to other confs
 PLUGIN_MANAGER="${CLI_CONFIG_MODULES:-zimfw}"
 PLUGIN_MANAGER_CONF=$(find $CLI_CONFIG_CONF_LOCATION -type f -name "${PLUGIN_MANAGER}.conf.*" | head -1)
-[[ -n "$PLUGIN_MANAGER_CONF" ]] && echo ". $PLUGIN_MANAGER_CONF" >> $CLI_CONFIG_PROGRAMS_CONF
+[[ -n "$PLUGIN_MANAGER_CONF" ]] && echo ". $PLUGIN_MANAGER_CONF" >>$CLI_CONFIG_PROGRAMS_CONF
 
-for tool in $(find  $CLI_CONFIG_CONF_LOCATION  -type f \( -name '*.conf.sh' -o -name '*.conf.zsh' \) -not -name "${PLUGIN_MANAGER}.conf.*" | sort); do
-  echo ". $tool" >> $CLI_CONFIG_PROGRAMS_CONF
+for tool in $(find $CLI_CONFIG_CONF_LOCATION -type f \( -name '*.conf.sh' -o -name '*.conf.zsh' \) -not -name "${PLUGIN_MANAGER}.conf.*" | sort); do
+  echo ". $tool" >>$CLI_CONFIG_PROGRAMS_CONF
 done
 
-echo eval "\$(thefuck --alias)" >> $CLI_CONFIG_PROGRAMS_CONF
-
+echo eval "\$(thefuck --alias)" >>$CLI_CONFIG_PROGRAMS_CONF
diff --git a/src/utils/tool-guards.zsh b/src/utils/tool-guards.zsh
index 3230723..364006e 100644
--- a/src/utils/tool-guards.zsh
+++ b/src/utils/tool-guards.zsh
@@ -21,13 +21,15 @@ validate_tools() {
     # count how many plugin managers were requested
     for pm in "${PLUGIN_MANAGERS[@]}"; do
       if [[ "$tool" == "$pm" ]]; then
-        (( plugin_manager_count++ ))
+        ((plugin_manager_count++))
       fi
     done
   done
 
-  if (( plugin_manager_count > 1 )); then
-    echo "[cli-config] Error: only one plugin manager can be specified (${(j:, :)PLUGIN_MANAGERS}). Got $plugin_manager_count."
+  if ((plugin_manager_count > 1)); then
+    pm_list=$(printf '%s, ' "${PLUGIN_MANAGERS[@]}")
+    pm_list=${pm_list%, }
+    echo "[cli-config] Error: only one plugin manager can be specified ($pm_list). Got $plugin_manager_count."
     exit 1
   fi
 }