diff --git a/readme.md b/readme.md
index 42e91ea..47befa6 100644
--- a/readme.md
+++ b/readme.md
@@ -238,7 +238,6 @@ Handle project workflows in a unified way:
       * disable & enable https
 * locales
   * persist
-  * restrict LC_* variables set for alpine
 * test
 
 #### Shell → Python
diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index d621bfe..3eaa305 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -247,6 +247,13 @@ nameserver ${value}
     fi
 }
 
+spcd_eval() {
+    if [ -n "${1}" ]; then
+        echo "${@}"
+        eval "${@}"
+    fi
+}
+
 # ╭───────────┬───────╮
 # │ functions │ error │
 # ╰───────────┴───────╯
@@ -776,11 +783,11 @@ spcd_step__environment_list_workspace() {
 
 spcd_clean_cache() {
     case "${SPCD_PM}" in
-    "${SPCD_PM_APK}") apk cache purge ;;
-    "${SPCD_PM_APT}") apt-get clean ;;
-    "${SPCD_PM_DNF}") dnf clean all ;;
-    "${SPCD_PM_PACMAN}") pacman --sync --clean --noconfirm ;;
-    "${SPCD_PM_ZYPPER}") zypper clean ;;
+    "${SPCD_PM_APK}") spcd_eval apk cache purge ;;
+    "${SPCD_PM_APT}") spcd_eval apt-get clean ;;
+    "${SPCD_PM_DNF}") spcd_eval dnf clean all ;;
+    "${SPCD_PM_PACMAN}") spcd_eval pacman --sync --clean --noconfirm ;;
+    "${SPCD_PM_ZYPPER}") spcd_eval zypper clean ;;
     *) ;;
     esac
 }
@@ -819,11 +826,11 @@ spcd_https_path() {
 
 spcd_install_package() {
     case "${SPCD_PM}" in
-    "${SPCD_PM_APK}") apk add "${1}" ;;
-    "${SPCD_PM_APT}") apt-get install --assume-yes "${1}" ;;
-    "${SPCD_PM_DNF}") dnf install --assumeyes "${1}" ;;
-    "${SPCD_PM_PACMAN}") pacman --sync --noconfirm "${1}" ;;
-    "${SPCD_PM_ZYPPER}") zypper --non-interactive install "${1}" ;;
+    "${SPCD_PM_APK}") spcd_eval apk add "${1}" ;;
+    "${SPCD_PM_APT}") spcd_eval apt-get install --assume-yes "${1}" ;;
+    "${SPCD_PM_DNF}") spcd_eval dnf install --assumeyes "${1}" ;;
+    "${SPCD_PM_PACMAN}") spcd_eval pacman --sync --noconfirm "${1}" ;;
+    "${SPCD_PM_ZYPPER}") spcd_eval zypper --non-interactive install "${1}" ;;
     *) ;;
     esac
     spcd_clean_cache
@@ -1006,7 +1013,7 @@ ${name}.${_SPCD_TXT_CHARSET} ${_SPCD_TXT_CHARSET}
         done
         ;;
     "list")
-        if ! locale --all-locales; then
+        if ! spcd_eval locale --all-locales; then
             echo "No locales yet!"
         fi
         ;;
@@ -1198,10 +1205,11 @@ Dir::Etc::SourceParts \"\";
     esac
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ARCH}")
-        pacman-key --init
+        spcd_eval pacman-key --init
         ;;
     "${SPCD_OS_DEBIAN}" | "${SPCD_OS_UBUNTU}")
         export DEBIAN_FRONTEND="noninteractive"
+        spcd_os_printenv DEBIAN_FRONTEND
         ;;
     *) ;;
     esac
@@ -1239,11 +1247,11 @@ SSLVerify = No
 spcd_step__packages_update_catalog() {
     spcd_step "Update catalog"
     case "${SPCD_PM}" in
-    "${SPCD_PM_APK}") apk update ;;
-    "${SPCD_PM_APT}") apt-get update ;;
-    "${SPCD_PM_DNF}") dnf makecache ;;
-    "${SPCD_PM_PACMAN}") pacman --sync --refresh ;;
-    "${SPCD_PM_ZYPPER}") zypper refresh ;;
+    "${SPCD_PM_APK}") spcd_eval apk update ;;
+    "${SPCD_PM_APT}") spcd_eval apt-get update ;;
+    "${SPCD_PM_DNF}") spcd_eval dnf makecache ;;
+    "${SPCD_PM_PACMAN}") spcd_eval pacman --sync --refresh ;;
+    "${SPCD_PM_ZYPPER}") spcd_eval zypper refresh ;;
     *) ;;
     esac
 }
@@ -1305,13 +1313,13 @@ spcd_step__ca_update_certificates() {
         "${SPCD_OS_ALMA}" | \
         "${SPCD_OS_FEDORA}" | \
         "${SPCD_OS_ROCKY}")
-        update-ca-trust
+        spcd_eval update-ca-trust
         ;;
     "${SPCD_OS_ALPINE}" | \
         "${SPCD_OS_DEBIAN}" | \
         "${SPCD_OS_OPENSUSE}" | \
         "${SPCD_OS_UBUNTU}")
-        update-ca-certificates
+        spcd_eval update-ca-certificates
         ;;
     *) ;;
     esac
@@ -1333,11 +1341,11 @@ spcd_step__packages_verify_https() {
 spcd_step__packages_upgrade_system() {
     spcd_step "Upgrade system"
     case "${SPCD_PM}" in
-    "${SPCD_PM_APK}") apk upgrade ;;
-    "${SPCD_PM_APT}") apt-get upgrade --assume-yes ;;
-    "${SPCD_PM_DNF}") dnf upgrade --assumeyes ;;
-    "${SPCD_PM_PACMAN}") pacman --sync --sysupgrade --noconfirm ;;
-    "${SPCD_PM_ZYPPER}") zypper --non-interactive update ;;
+    "${SPCD_PM_APK}") spcd_eval apk upgrade ;;
+    "${SPCD_PM_APT}") spcd_eval apt-get upgrade --assume-yes ;;
+    "${SPCD_PM_DNF}") spcd_eval dnf upgrade --assumeyes ;;
+    "${SPCD_PM_PACMAN}") spcd_eval pacman --sync --sysupgrade --noconfirm ;;
+    "${SPCD_PM_ZYPPER}") spcd_eval zypper --non-interactive update ;;
     *) ;;
     esac
 }