diff --git a/misc/build.func b/misc/build.func
index b1ce4fdf3..d150d909f 100644
--- a/misc/build.func
+++ b/misc/build.func
@@ -118,7 +118,7 @@ maxkeys_check() {
 
   # Exit if kernel parameters are unavailable
   if [[ "$per_user_maxkeys" -eq 0 || "$per_user_maxbytes" -eq 0 ]]; then
-    echo -e "${CROSS}${RD} Error: Unable to read kernel parameters. Ensure proper permissions.${CL}"
+    msg_error "Unable to read kernel key parameters. Ensure proper permissions."
     exit 1
   fi
 
@@ -135,19 +135,19 @@ maxkeys_check() {
   # Check if key or byte usage is near limits
   failure=0
   if [[ "$used_lxc_keys" -gt "$threshold_keys" ]]; then
-    echo -e "${CROSS}${RD} Warning: Key usage is near the limit (${used_lxc_keys}/${per_user_maxkeys}).${CL}"
+    msg_warn "Key usage is near the limit (${used_lxc_keys}/${per_user_maxkeys})"
     echo -e "${INFO} Suggested action: Set ${GN}kernel.keys.maxkeys=${new_limit_keys}${CL} in ${BOLD}/etc/sysctl.d/98-community-scripts.conf${CL}."
     failure=1
   fi
   if [[ "$used_lxc_bytes" -gt "$threshold_bytes" ]]; then
-    echo -e "${CROSS}${RD} Warning: Key byte usage is near the limit (${used_lxc_bytes}/${per_user_maxbytes}).${CL}"
+    msg_warn "Key byte usage is near the limit (${used_lxc_bytes}/${per_user_maxbytes})"
     echo -e "${INFO} Suggested action: Set ${GN}kernel.keys.maxbytes=${new_limit_bytes}${CL} in ${BOLD}/etc/sysctl.d/98-community-scripts.conf${CL}."
     failure=1
   fi
 
   # Provide next steps if issues are detected
   if [[ "$failure" -eq 1 ]]; then
-    echo -e "${INFO} To apply changes, run: ${BOLD}service procps force-reload${CL}"
+    msg_error "Kernel key limits exceeded - see suggestions above"
     exit 1
   fi
 
@@ -2034,6 +2034,7 @@ advanced_settings() {
           ((STEP++))
         else
           whiptail --msgbox "Default bridge 'vmbr0' not found!\n\nPlease configure a network bridge in Proxmox first." 10 58
+          msg_error "Default bridge 'vmbr0' not found"
           exit 1
         fi
       else
@@ -3049,7 +3050,7 @@ install_script() {
       CHOICE=""
       ;;
     *)
-      echo -e "${CROSS}${RD}Invalid option: $CHOICE${CL}"
+      msg_error "Invalid option: $CHOICE"
       exit 1
       ;;
     esac
@@ -3128,12 +3129,12 @@ check_container_resources() {
   current_cpu=$(nproc)
 
   if [[ "$current_ram" -lt "$var_ram" ]] || [[ "$current_cpu" -lt "$var_cpu" ]]; then
-    echo -e "\n${INFO}${HOLD} ${GN}Required: ${var_cpu} CPU, ${var_ram}MB RAM ${CL}| ${RD}Current: ${current_cpu} CPU, ${current_ram}MB RAM${CL}"
+    msg_warn "Under-provisioned: Required ${var_cpu} CPU/${var_ram}MB RAM, Current ${current_cpu} CPU/${current_ram}MB RAM"
     echo -e "${YWB}Please ensure that the ${APP} LXC is configured with at least ${var_cpu} vCPU and ${var_ram} MB RAM for the build process.${CL}\n"
     echo -ne "${INFO}${HOLD} May cause data loss! ${INFO} Continue update with under-provisioned LXC? <yes/No>  "
     read -r prompt
     if [[ ! ${prompt,,} =~ ^(yes)$ ]]; then
-      echo -e "${CROSS}${HOLD} ${YWB}Exiting based on user input.${CL}"
+      msg_error "Aborted: under-provisioned LXC (${current_cpu} CPU/${current_ram}MB RAM < ${var_cpu} CPU/${var_ram}MB RAM)"
       exit 1
     fi
   else
@@ -3152,11 +3153,11 @@ check_container_storage() {
   local used_size=$(df /boot --output=used | tail -n 1)
   usage=$((100 * used_size / total_size))
   if ((usage > 80)); then
-    echo -e "${INFO}${HOLD} ${YWB}Warning: Storage is dangerously low (${usage}%).${CL}"
+    msg_warn "Storage is dangerously low (${usage}% used on /boot)"
     echo -ne "Continue anyway? <y/N>  "
     read -r prompt
     if [[ ! ${prompt,,} =~ ^(y|yes)$ ]]; then
-      echo -e "${CROSS}${HOLD}${YWB}Exiting based on user input.${CL}"
+      msg_error "Aborted: storage too low (${usage}% used)"
       exit 1
     fi
   fi
@@ -3546,10 +3547,16 @@ build_container() {
   # Build PCT_OPTIONS as string for export
   TEMP_DIR=$(mktemp -d)
   pushd "$TEMP_DIR" >/dev/null
+  local _func_url
   if [ "$var_os" == "alpine" ]; then
-    export FUNCTIONS_FILE_PATH="$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/alpine-install.func)"
+    _func_url="https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/alpine-install.func"
   else
-    export FUNCTIONS_FILE_PATH="$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/install.func)"
+    _func_url="https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/install.func"
+  fi
+  export FUNCTIONS_FILE_PATH="$(curl -fsSL "$_func_url")"
+  if [[ -z "$FUNCTIONS_FILE_PATH" || ${#FUNCTIONS_FILE_PATH} -lt 100 ]]; then
+    msg_error "Failed to download install functions from: $_func_url"
+    exit 1
   fi
 
   # Core exports for install.func
@@ -3920,7 +3927,9 @@ EOF
     fi
     sleep 1
     if [ "$i" -eq 10 ]; then
-      msg_error "LXC Container did not reach running state"
+      local ct_status
+      ct_status=$(pct status "$CTID" 2>/dev/null || echo "unknown")
+      msg_error "LXC Container did not reach running state (status: ${ct_status})"
       exit 1
     fi
   done
@@ -3944,7 +3953,7 @@ EOF
 
     if [ -z "$ip_in_lxc" ]; then
       msg_error "No IP assigned to CT $CTID after 20s"
-      echo -e "${YW}Troubleshooting:${CL}"
+      msg_custom "🔧" "${YW}" "Troubleshooting:"
       echo "  • Verify bridge ${BRG} exists and has connectivity"
       echo "  • Check if DHCP server is reachable (if using DHCP)"
       echo "  • Verify static IP configuration (if using static IP)"
@@ -3966,8 +3975,7 @@ EOF
     done
 
     if [ "$ping_success" = false ]; then
-      msg_warn "Network configured (IP: $ip_in_lxc) but connectivity test failed"
-      echo -e "${YW}Container may have limited internet access. Installation will continue...${CL}"
+      msg_warn "Network configured (IP: $ip_in_lxc) but connectivity test failed - installation will continue"
     else
       msg_ok "Network in LXC is reachable (ping)"
     fi
@@ -4011,7 +4019,10 @@ EOF
 http://dl-cdn.alpinelinux.org/alpine/latest-stable/main
 http://dl-cdn.alpinelinux.org/alpine/latest-stable/community
 EOF'
-    pct exec "$CTID" -- ash -c "apk add bash newt curl openssh nano mc ncurses jq >/dev/null"
+    pct exec "$CTID" -- ash -c "apk add bash newt curl openssh nano mc ncurses jq >/dev/null" || {
+      msg_error "Failed to install base packages in Alpine container"
+      exit 1
+    }
   else
     sleep 3
     LANG=${LANG:-en_US.UTF-8}
@@ -4908,8 +4919,7 @@ create_lxc_container() {
       return 0
     fi
 
-    echo
-    echo "An update for the Proxmox LXC stack is available:"
+    msg_info "An update for the Proxmox LXC stack is available"
     echo "  pve-container: installed=${_pvec_i:-n/a}  candidate=${_pvec_c:-n/a}"
     echo "  lxc-pve     : installed=${_lxcp_i:-n/a}  candidate=${_lxcp_c:-n/a}"
     echo
@@ -4961,7 +4971,6 @@ create_lxc_container() {
     exit 205
   }
   if qm status "$CTID" &>/dev/null || pct status "$CTID" &>/dev/null; then
-    echo -e "ID '$CTID' is already in use."
     unset CTID
     msg_error "Cannot use ID that is already in use."
     exit 206
@@ -5019,17 +5028,40 @@ create_lxc_container() {
   msg_info "Validating storage '$CONTAINER_STORAGE'"
   STORAGE_TYPE=$(grep -E "^[^:]+: $CONTAINER_STORAGE$" /etc/pve/storage.cfg | cut -d: -f1 | head -1)
 
+  if [[ -z "$STORAGE_TYPE" ]]; then
+    msg_error "Storage '$CONTAINER_STORAGE' not found in /etc/pve/storage.cfg"
+    exit 213
+  fi
+
   case "$STORAGE_TYPE" in
-  iscsidirect) exit 212 ;;
-  iscsi | zfs) exit 213 ;;
-  cephfs) exit 219 ;;
-  pbs) exit 224 ;;
+  iscsidirect)
+    msg_error "Storage '$CONTAINER_STORAGE' uses iSCSI-direct which does not support container rootfs."
+    exit 212
+    ;;
+  iscsi | zfs)
+    msg_error "Storage '$CONTAINER_STORAGE' ($STORAGE_TYPE) does not support container rootdir content."
+    exit 213
+    ;;
+  cephfs)
+    msg_error "Storage '$CONTAINER_STORAGE' uses CephFS which is not supported for LXC rootfs."
+    exit 219
+    ;;
+  pbs)
+    msg_error "Storage '$CONTAINER_STORAGE' is a Proxmox Backup Server — cannot be used for containers."
+    exit 224
+    ;;
   linstor | rbd | nfs | cifs)
-    pvesm status -storage "$CONTAINER_STORAGE" &>/dev/null || exit 217
+    if ! pvesm status -storage "$CONTAINER_STORAGE" &>/dev/null; then
+      msg_error "Storage '$CONTAINER_STORAGE' ($STORAGE_TYPE) is not accessible or inactive."
+      exit 217
+    fi
     ;;
   esac
 
-  pvesm status -content rootdir 2>/dev/null | awk 'NR>1{print $1}' | grep -qx "$CONTAINER_STORAGE" || exit 213
+  if ! pvesm status -content rootdir 2>/dev/null | awk 'NR>1{print $1}' | grep -qx "$CONTAINER_STORAGE"; then
+    msg_error "Storage '$CONTAINER_STORAGE' ($STORAGE_TYPE) does not support 'rootdir' content."
+    exit 213
+  fi
   msg_ok "Storage '$CONTAINER_STORAGE' ($STORAGE_TYPE) validated"
 
   msg_info "Validating template storage '$TEMPLATE_STORAGE'"
@@ -5102,8 +5134,7 @@ create_lxc_container() {
 
   # If still no template, try to find alternatives
   if [[ -z "$TEMPLATE" ]]; then
-    echo ""
-    echo "[DEBUG] No template found for ${PCT_OSTYPE} ${PCT_OSVERSION}, searching for alternatives..."
+    msg_warn "No template found for ${PCT_OSTYPE} ${PCT_OSVERSION}, searching for alternatives..."
 
     # Get all available versions for this OS type
     AVAILABLE_VERSIONS=()
@@ -5377,13 +5408,19 @@ create_lxc_container() {
   if [[ ! -s "$TEMPLATE_PATH" || "$(stat -c%s "$TEMPLATE_PATH" 2>/dev/null || echo 0)" -lt 1000000 ]]; then
     msg_info "Template file missing or too small – downloading"
     rm -f "$TEMPLATE_PATH"
-    pveam download "$TEMPLATE_STORAGE" "$TEMPLATE" >/dev/null 2>&1
+    pveam download "$TEMPLATE_STORAGE" "$TEMPLATE" >/dev/null 2>&1 || {
+      msg_error "Failed to download template '$TEMPLATE' to storage '$TEMPLATE_STORAGE'"
+      exit 222
+    }
     msg_ok "Template downloaded"
   elif ! tar -tf "$TEMPLATE_PATH" &>/dev/null; then
     if [[ -n "$ONLINE_TEMPLATE" ]]; then
       msg_info "Template appears corrupted – re-downloading"
       rm -f "$TEMPLATE_PATH"
-      pveam download "$TEMPLATE_STORAGE" "$TEMPLATE" >/dev/null 2>&1
+      pveam download "$TEMPLATE_STORAGE" "$TEMPLATE" >/dev/null 2>&1 || {
+        msg_error "Failed to re-download template '$TEMPLATE'"
+        exit 222
+      }
       msg_ok "Template re-downloaded"
     else
       msg_warn "Template appears corrupted, but no online version exists. Skipping re-download."
@@ -5425,20 +5462,17 @@ create_lxc_container() {
         if ! pct create "$CTID" "local:vztmpl/${TEMPLATE}" $PCT_OPTIONS >>"$LOGFILE" 2>&1; then
           # Local fallback also failed - check for LXC stack version issue
           if grep -qiE 'unsupported .* version' "$LOGFILE"; then
-            echo
-            echo "pct reported 'unsupported ... version' – your LXC stack might be too old for this template."
-            echo "We can try to upgrade 'pve-container' and 'lxc-pve' now and retry automatically."
+            msg_warn "pct reported 'unsupported version' – LXC stack might be too old for this template"
             offer_lxc_stack_upgrade_and_maybe_retry "yes"
             rc=$?
             case $rc in
             0) : ;; # success - container created, continue
             2)
-              echo "Upgrade was declined. Please update and re-run:
-  apt update && apt install --only-upgrade pve-container lxc-pve"
+              msg_error "Upgrade declined. Please update and re-run: apt update && apt install --only-upgrade pve-container lxc-pve"
               exit 231
               ;;
             3)
-              echo "Upgrade and/or retry failed. Please inspect: $LOGFILE"
+              msg_error "Upgrade and/or retry failed. Please inspect: $LOGFILE"
               exit 231
               ;;
             esac
@@ -5457,20 +5491,17 @@ create_lxc_container() {
       else
         # Already on local storage and still failed - check LXC stack version
         if grep -qiE 'unsupported .* version' "$LOGFILE"; then
-          echo
-          echo "pct reported 'unsupported ... version' – your LXC stack might be too old for this template."
-          echo "We can try to upgrade 'pve-container' and 'lxc-pve' now and retry automatically."
+          msg_warn "pct reported 'unsupported version' – LXC stack might be too old for this template"
           offer_lxc_stack_upgrade_and_maybe_retry "yes"
           rc=$?
           case $rc in
           0) : ;; # success - container created, continue
           2)
-            echo "Upgrade was declined. Please update and re-run:
-  apt update && apt install --only-upgrade pve-container lxc-pve"
+            msg_error "Upgrade declined. Please update and re-run: apt update && apt install --only-upgrade pve-container lxc-pve"
             exit 231
             ;;
           3)
-            echo "Upgrade and/or retry failed. Please inspect: $LOGFILE"
+            msg_error "Upgrade and/or retry failed. Please inspect: $LOGFILE"
             exit 231
             ;;
           esac
diff --git a/misc/core.func b/misc/core.func
index c77324edc..044810f35 100644
--- a/misc/core.func
+++ b/misc/core.func
@@ -276,7 +276,7 @@ shell_check() {
     msg_error "Your default shell is currently not set to Bash. To use these scripts, please switch to the Bash shell."
     echo -e "\nExiting..."
     sleep 2
-    exit
+    exit 1
   fi
 }
 
@@ -293,7 +293,7 @@ root_check() {
     msg_error "Please run this script as root."
     echo -e "\nExiting..."
     sleep 2
-    exit
+    exit 1
   fi
 }
 
@@ -345,11 +345,10 @@ pve_check() {
 # ------------------------------------------------------------------------------
 arch_check() {
   if [ "$(dpkg --print-architecture)" != "amd64" ]; then
-    echo -e "\n ${INFO}${YWB}This script will not work with PiMox! \n"
-    echo -e "\n ${YWB}Visit https://github.com/asylumexp/Proxmox for ARM64 support. \n"
-    echo -e "Exiting..."
+    msg_error "This script will not work with PiMox (ARM architecture detected)."
+    msg_warn "Visit https://github.com/asylumexp/Proxmox for ARM64 support."
     sleep 2
-    exit
+    exit 1
   fi
 }
 
@@ -530,7 +529,9 @@ silent() {
   if [[ $rc -ne 0 ]]; then
     # Source explain_exit_code if needed
     if ! declare -f explain_exit_code >/dev/null 2>&1; then
-      source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/error_handler.func)
+      if ! source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/error_handler.func); then
+        explain_exit_code() { echo "unknown (error_handler.func download failed)"; }
+      fi
     fi
 
     local explanation
@@ -785,8 +786,8 @@ fatal() {
 # ------------------------------------------------------------------------------
 exit_script() {
   clear
-  echo -e "\n${CROSS}${RD}User exited script${CL}\n"
-  exit
+  msg_error "User exited script"
+  exit 0
 }
 
 # ------------------------------------------------------------------------------
@@ -807,6 +808,7 @@ get_header() {
 
   if [ ! -s "$local_header_path" ]; then
     if ! curl -fsSL "$header_url" -o "$local_header_path"; then
+      msg_warn "Failed to download header: $header_url"
       return 1
     fi
   fi
@@ -847,10 +849,10 @@ header_info() {
 ensure_tput() {
   if ! command -v tput >/dev/null 2>&1; then
     if grep -qi 'alpine' /etc/os-release; then
-      apk add --no-cache ncurses >/dev/null 2>&1
+      apk add --no-cache ncurses >/dev/null 2>&1 || msg_warn "Failed to install ncurses (tput may be unavailable)"
     elif command -v apt-get >/dev/null 2>&1; then
       apt-get update -qq >/dev/null
-      apt-get install -y -qq ncurses-bin >/dev/null 2>&1
+      apt-get install -y -qq ncurses-bin >/dev/null 2>&1 || msg_warn "Failed to install ncurses-bin (tput may be unavailable)"
     fi
   fi
 }
@@ -1310,6 +1312,7 @@ prompt_select() {
 
   # Validate options
   if [[ $num_options -eq 0 ]]; then
+    msg_warn "prompt_select called with no options"
     echo "" >&2
     return 1
   fi
@@ -1552,22 +1555,30 @@ check_or_create_swap() {
   local swap_size_mb
   swap_size_mb=$(prompt_input "Enter swap size in MB (e.g., 2048 for 2GB):" "2048" 60)
   if ! [[ "$swap_size_mb" =~ ^[0-9]+$ ]]; then
-    msg_error "Invalid size input. Aborting."
+    msg_error "Invalid swap size: '${swap_size_mb}' (must be a number in MB)"
     return 1
   fi
 
   local swap_file="/swapfile"
 
   msg_info "Creating ${swap_size_mb}MB swap file at $swap_file"
-  if dd if=/dev/zero of="$swap_file" bs=1M count="$swap_size_mb" status=progress &&
-    chmod 600 "$swap_file" &&
-    mkswap "$swap_file" &&
-    swapon "$swap_file"; then
-    msg_ok "Swap file created and activated successfully"
-  else
-    msg_error "Failed to create or activate swap"
+  if ! dd if=/dev/zero of="$swap_file" bs=1M count="$swap_size_mb" status=progress; then
+    msg_error "Failed to allocate swap file (dd failed)"
     return 1
   fi
+  if ! chmod 600 "$swap_file"; then
+    msg_error "Failed to set permissions on $swap_file"
+    return 1
+  fi
+  if ! mkswap "$swap_file"; then
+    msg_error "Failed to format swap file (mkswap failed)"
+    return 1
+  fi
+  if ! swapon "$swap_file"; then
+    msg_error "Failed to activate swap (swapon failed)"
+    return 1
+  fi
+  msg_ok "Swap file created and activated successfully"
 }
 
 # ------------------------------------------------------------------------------
@@ -1649,7 +1660,7 @@ function get_lxc_ip() {
 
     LOCAL_IP="$(get_current_ip || true)"
     if [[ -z "$LOCAL_IP" ]]; then
-      msg_error "Could not determine LOCAL_IP"
+      msg_error "Could not determine LOCAL_IP (checked: eth0, hostname -I, ip route, IPv6 targets)"
       return 1
     fi
   fi
diff --git a/misc/tools.func b/misc/tools.func
index c3ee29335..ca68b1732 100644
--- a/misc/tools.func
+++ b/misc/tools.func
@@ -201,6 +201,7 @@ install_packages_with_retry() {
     fi
   done
 
+  msg_error "Failed to install packages after $((max_retries + 1)) attempts: ${packages[*]}"
   return 1
 }
 
@@ -231,6 +232,7 @@ upgrade_packages_with_retry() {
     fi
   done
 
+  msg_error "Failed to upgrade packages after $((max_retries + 1)) attempts: ${packages[*]}"
   return 1
 }
 
@@ -675,6 +677,7 @@ verify_repo_available() {
   if curl -fsSL --max-time 10 "${repo_url}/dists/${suite}/Release" &>/dev/null; then
     return 0
   fi
+  msg_warn "Repository not available: ${repo_url} (suite: ${suite})"
   return 1
 }
 
@@ -839,6 +842,7 @@ github_api_call() {
     esac
   done
 
+  msg_error "GitHub API call failed after ${max_retries} attempts: ${url}"
   return 1
 }
 
@@ -900,6 +904,7 @@ codeberg_api_call() {
     esac
   done
 
+  msg_error "Codeberg API call failed after ${max_retries} attempts: ${url}"
   return 1
 }
 
@@ -1369,7 +1374,9 @@ setup_deb822_repo() {
     [[ -n "$enabled" ]] && echo "Enabled: $enabled"
   } >/etc/apt/sources.list.d/${name}.sources
 
-  $STD apt update
+  $STD apt update || {
+    msg_warn "apt update failed after adding repository: ${name}"
+  }
 }
 
 # ------------------------------------------------------------------------------
@@ -1377,12 +1384,16 @@ setup_deb822_repo() {
 # ------------------------------------------------------------------------------
 hold_package_version() {
   local package="$1"
-  $STD apt-mark hold "$package"
+  $STD apt-mark hold "$package" || {
+    msg_warn "Failed to hold package version: ${package}"
+  }
 }
 
 unhold_package_version() {
   local package="$1"
-  $STD apt-mark unhold "$package"
+  $STD apt-mark unhold "$package" || {
+    msg_warn "Failed to unhold package version: ${package}"
+  }
 }
 
 # ------------------------------------------------------------------------------
@@ -1412,6 +1423,7 @@ enable_and_start_service() {
   local service="$1"
 
   if ! systemctl enable "$service" &>/dev/null; then
+    msg_error "Failed to enable service: $service"
     return 1
   fi
 
@@ -1454,6 +1466,7 @@ extract_version_from_json() {
   version=$(echo "$json" | jq -r ".${field} // empty")
 
   if [[ -z "$version" ]]; then
+    msg_warn "JSON field '${field}' is empty in API response"
     return 1
   fi
 
@@ -1473,8 +1486,9 @@ get_latest_github_release() {
   local temp_file=$(mktemp)
 
   if ! github_api_call "https://api.github.com/repos/${repo}/releases/latest" "$temp_file"; then
+    msg_warn "GitHub API call failed for ${repo}"
     rm -f "$temp_file"
-    return 0
+    return 1
   fi
 
   local version
@@ -1483,7 +1497,7 @@ get_latest_github_release() {
 
   if [[ -z "$version" ]]; then
     msg_error "Could not determine latest version for ${repo}"
-    return 0
+    return 1
   fi
 
   echo "$version"
@@ -1499,8 +1513,9 @@ get_latest_codeberg_release() {
 
   # Codeberg API: get all releases and pick the first non-draft/non-prerelease
   if ! codeberg_api_call "https://codeberg.org/api/v1/repos/${repo}/releases" "$temp_file"; then
+    msg_warn "Codeberg API call failed for ${repo}"
     rm -f "$temp_file"
-    return 0
+    return 1
   fi
 
   local version
@@ -1515,7 +1530,7 @@ get_latest_codeberg_release() {
 
   if [[ -z "$version" ]]; then
     msg_error "Could not determine latest version for ${repo}"
-    return 0
+    return 1
   fi
 
   echo "$version"
@@ -1646,6 +1661,7 @@ get_latest_gh_tag() {
     sort -V | tail -n1)
 
   if [[ -z "$latest" ]]; then
+    msg_warn "No matching tags found for ${repo}${prefix:+ (prefix: $prefix)}"
     return 1
   fi
 
@@ -1881,7 +1897,7 @@ check_for_codeberg_release() {
   releases_json=$(curl -fsSL --max-time 20 \
     -H 'Accept: application/json' \
     "https://codeberg.org/api/v1/repos/${source}/releases" 2>/dev/null) || {
-    msg_error "Unable to fetch releases for ${app}"
+    msg_error "Unable to fetch releases for ${app} (codeberg.org/api/v1/repos/${source}/releases)"
     return 1
   }
 
@@ -2014,12 +2030,12 @@ function download_with_progress() {
 
   if [[ -z "$content_length" ]]; then
     if ! curl -fL# -o "$output" "$url"; then
-      msg_error "Download failed"
+      msg_error "Download failed: $url"
       return 1
     fi
   else
     if ! curl -fsSL "$url" | pv -s "$content_length" >"$output"; then
-      msg_error "Download failed"
+      msg_error "Download failed: $url"
       return 1
     fi
   fi
@@ -2562,7 +2578,10 @@ _gh_scan_older_releases() {
     -H 'Accept: application/vnd.github+json' \
     -H 'X-GitHub-Api-Version: 2022-11-28' \
     "${header[@]}" \
-    "https://api.github.com/repos/${repo}/releases?per_page=15" 2>/dev/null) || return 1
+    "https://api.github.com/repos/${repo}/releases?per_page=15" 2>/dev/null) || {
+    msg_warn "Failed to fetch older releases for ${repo}"
+    return 1
+  }
 
   local count
   count=$(echo "$releases_list" | jq 'length')
@@ -3104,7 +3123,9 @@ function setup_composer() {
   # Scenario 1: Already installed - just self-update
   if [[ -n "$INSTALLED_VERSION" ]]; then
     msg_info "Update Composer $INSTALLED_VERSION"
-    $STD "$COMPOSER_BIN" self-update --no-interaction || true
+    $STD "$COMPOSER_BIN" self-update --no-interaction || {
+      msg_warn "Composer self-update failed, continuing with current version"
+    }
     local UPDATED_VERSION
     UPDATED_VERSION=$("$COMPOSER_BIN" --version 2>/dev/null | awk '{print $3}')
     cache_installed_version "composer" "$UPDATED_VERSION"
@@ -3140,7 +3161,9 @@ function setup_composer() {
   fi
 
   chmod +x "$COMPOSER_BIN"
-  $STD "$COMPOSER_BIN" self-update --no-interaction || true
+  $STD "$COMPOSER_BIN" self-update --no-interaction || {
+    msg_warn "Composer self-update failed after fresh install"
+  }
 
   local FINAL_VERSION
   FINAL_VERSION=$("$COMPOSER_BIN" --version 2>/dev/null | awk '{print $3}')
@@ -5223,7 +5246,9 @@ function setup_mysql() {
     ensure_apt_working || return 1
 
     # Perform upgrade with retry logic (non-fatal if fails)
-    upgrade_packages_with_retry "mysql-server" "mysql-client" || true
+    upgrade_packages_with_retry "mysql-server" "mysql-client" || {
+      msg_warn "MySQL package upgrade had issues, continuing with current version"
+    }
 
     cache_installed_version "mysql" "$MYSQL_VERSION"
     msg_ok "Update MySQL $MYSQL_VERSION"
@@ -5413,7 +5438,9 @@ function setup_nodejs() {
     }
 
     # Force APT cache refresh after repository setup
-    $STD apt update
+    $STD apt update || {
+      msg_warn "apt update failed after Node.js repository setup"
+    }
 
     ensure_dependencies curl ca-certificates gnupg
 
@@ -5656,7 +5683,10 @@ EOF
   if [[ "$DISTRO_ID" == "ubuntu" ]]; then
     # Ubuntu: Use ondrej/php PPA
     msg_info "Adding ondrej/php PPA for Ubuntu"
-    $STD apt install -y software-properties-common
+    $STD apt install -y software-properties-common || {
+      msg_error "Failed to install software-properties-common"
+      return 1
+    }
     # Don't use $STD for add-apt-repository as it uses background processes
     add-apt-repository -y ppa:ondrej/php >>"$(get_active_logfile)" 2>&1
   else
@@ -5667,7 +5697,9 @@ EOF
     }
   fi
   ensure_apt_working || return 1
-  $STD apt update
+  $STD apt update || {
+    msg_warn "apt update failed after PHP repository setup"
+  }
 
   # Get available PHP version from repository
   local AVAILABLE_PHP_VERSION=""
@@ -5962,7 +5994,9 @@ function setup_postgresql() {
     }
   fi
 
-  $STD systemctl enable --now postgresql 2>/dev/null || true
+  $STD systemctl enable --now postgresql 2>/dev/null || {
+    msg_warn "Failed to enable/start PostgreSQL service"
+  }
 
   # Add PostgreSQL binaries to PATH
   if ! grep -q '/usr/lib/postgresql' /etc/environment 2>/dev/null; then
@@ -5976,7 +6010,9 @@ function setup_postgresql() {
   if [[ -n "$PG_MODULES" ]]; then
     IFS=',' read -ra MODULES <<<"$PG_MODULES"
     for module in "${MODULES[@]}"; do
-      $STD apt install -y "postgresql-${PG_VERSION}-${module}" 2>/dev/null || true
+      $STD apt install -y "postgresql-${PG_VERSION}-${module}" 2>/dev/null || {
+        msg_warn "Failed to install PostgreSQL module: ${module}"
+      }
     done
   fi
 }
@@ -6635,7 +6671,9 @@ function setup_clickhouse() {
     ensure_apt_working || return 1
 
     # Perform upgrade with retry logic (non-fatal if fails)
-    upgrade_packages_with_retry "clickhouse-server" "clickhouse-client" || true
+    upgrade_packages_with_retry "clickhouse-server" "clickhouse-client" || {
+      msg_warn "ClickHouse package upgrade had issues, continuing with current version"
+    }
     cache_installed_version "clickhouse" "$CLICKHOUSE_VERSION"
     msg_ok "Update ClickHouse $CLICKHOUSE_VERSION"
     return 0
@@ -6770,7 +6808,9 @@ function setup_rust() {
     }
 
     # Update to latest patch version
-    $STD rustup update "$RUST_TOOLCHAIN" </dev/null || true
+    $STD rustup update "$RUST_TOOLCHAIN" </dev/null || {
+      msg_warn "Rust toolchain update had issues"
+    }
 
     # Ensure PATH is updated for current shell session
     export PATH="$CARGO_BIN:$PATH"
@@ -7172,7 +7212,10 @@ function setup_docker() {
         docker-ce-cli \
         containerd.io \
         docker-buildx-plugin \
-        docker-compose-plugin
+        docker-compose-plugin || {
+        msg_error "Failed to update Docker packages"
+        return 1
+      }
       msg_ok "Updated Docker to $DOCKER_LATEST_VERSION"
     else
       msg_ok "Docker is up-to-date ($DOCKER_CURRENT_VERSION)"
@@ -7184,7 +7227,10 @@ function setup_docker() {
       docker-ce-cli \
       containerd.io \
       docker-buildx-plugin \
-      docker-compose-plugin
+      docker-compose-plugin || {
+      msg_error "Failed to install Docker packages"
+      return 1
+    }
 
     DOCKER_CURRENT_VERSION=$(docker --version | grep -oP '\d+\.\d+\.\d+' | head -1)
     msg_ok "Installed Docker $DOCKER_CURRENT_VERSION"