diff --git a/readme.md b/readme.md
index c028469..f8d9ebc 100644
--- a/readme.md
+++ b/readme.md
@@ -217,11 +217,12 @@ Handle project workflows in a unified way:
 
 * build instead of readme
 * generate graphs
-* list CI behavior differences
+* list behavior differences
+  * Continuous Integration platforms
+  * Operating Systems
 
 #### Shell
 
-* command to echo & run
 * comment
 * handle errors
 * packages
@@ -238,8 +239,6 @@ Handle project workflows in a unified way:
       * disable & enable https
 * locales
   * persist
-  * restrict LC_* variables set for alpine
-  * test LC_* variables
 * test
 
 #### Shell → Python
diff --git a/spcd.sh b/spcd.sh
new file mode 100755
index 0000000..a577aed
--- /dev/null
+++ b/spcd.sh
@@ -0,0 +1,27 @@
+#! /usr/bin/env sh
+
+gource \
+--auto-skip-seconds 1 \
+--date-format "%Y / %m / %d ⋅ %H : %M : %S" \
+--disable-progress \
+-f \
+--hide mouse,usernames \
+--highlight-dirs \
+--key \
+--output-framerate 60 \
+--seconds-per-day 2.0 \
+--output-ppm-stream - \
+| \
+ffmpeg \
+-codec:v ppm \
+-format image2pipe \
+-framerate 120 \
+-i - \
+-codec:v libx264 \
+-preset veryslow \
+-qp 23 \
+-movflags \
++faststart \
+-pix_fmt yuv420p \
+-y \
+spcd.mp4
diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index 616a705..0268849 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -1,8 +1,20 @@
 #! /usr/bin/env sh
 
-# ╭───╮
-# │ _ │
-# ╰───╯
+# ╭───────────────╮
+# │ __ = internal │
+# ╰───────────────╯
+
+# __SPCD_BANNER_TOP
+# __SPCD_BANNER_MIDDLE
+# __SPCD_BANNER_BOTTOM
+
+# __SPCD_STEP_LEVEL
+# __SPCD_STEP_level_INDEX
+# __SPCD_STEP_level_LABEL
+
+# ╭─────────────╮
+# │ _ = private │
+# ╰─────────────╯
 
 _SPCD_BOX_DOWN_AND_HORIZONTAL="┬"
 _SPCD_BOX_DOWN_AND_LEFT="╮"
@@ -143,11 +155,11 @@ _SPCD_FRAME_TOP="${_SPCD_BOX_DOWN_AND_RIGHT}${_SPCD_BOX_LEFT}"
 _SPCD_FRAME_BOTTOM="${_SPCD_BOX_UP_AND_RIGHT}${_SPCD_BOX_LEFT}"
 
 _spcd_frame_open() {
-    echo "${_SPCD_FRAME_TOP}${1}"
+    echo "${_SPCD_FRAME_TOP}${*}"
 }
 
 _spcd_frame_shut() {
-    echo "${_SPCD_FRAME_BOTTOM}${1}"
+    echo "${_SPCD_FRAME_BOTTOM}${*}"
 }
 
 # ╭───┬────╮
@@ -195,9 +207,9 @@ _spcd_txt_pick() {
     esac
 }
 
-# ╭───────────╮
-# │ functions │
-# ╰───────────╯
+# ╭────────────╮
+# │ p = public │
+# ╰────────────╯
 
 spcd_ca() {
     local grep="\(After\|Before\|Issuer\|Signature Algorithm\|Subject:\)"
@@ -247,9 +259,17 @@ nameserver ${value}
     fi
 }
 
-# ╭───────────┬───────╮
-# │ functions │ error │
-# ╰───────────┴───────╯
+spcd_run() {
+    if [ -n "${1}" ]; then
+        _spcd_frame_open "${@}"
+        "${@}"
+        _spcd_frame_shut "${@}"
+    fi
+}
+
+# ╭───┬───────╮
+# │ p │ error │
+# ╰───┴───────╯
 
 spcd_error_ci() {
     echo "× CI: ${*}"
@@ -262,9 +282,9 @@ spcd_error_os() {
     exit "${_SPCD_ERROR_OS}"
 }
 
-# ╭───────────┬────╮
-# │ functions │ os │
-# ╰───────────┴────╯
+# ╭───┬────╮
+# │ p │ os │
+# ╰───┴────╯
 
 spcd_os_grep() {
     local variable="${1}"
@@ -329,17 +349,17 @@ spcd_os_write() {
     fi
 }
 
-# ╭───────────┬───────╮
-# │ functions │ split │
-# ╰───────────┴───────╯
+# ╭───┬───────╮
+# │ p │ split │
+# ╰───┴───────╯
 
 spcd_split() {
     echo "${_SPCD_RULE_LEFT}${_SPCD_RULE_MIDDLE}${_SPCD_RULE_RIGHT}"
 }
 
-# ╭───────────┬──────╮
-# │ functions │ step │
-# ╰───────────┴──────╯
+# ╭───┬──────╮
+# │ p │ step │
+# ╰───┴──────╯
 
 spcd_step() {
     if [ -n "${1}" ]; then
@@ -363,9 +383,9 @@ spcd_step_out() {
     __SPCD_STEP_LEVEL=$((__SPCD_STEP_LEVEL - 1))
 }
 
-# ╭───────────┬─────╮
-# │ functions │ txt │
-# ╰───────────┴─────╯
+# ╭───┬─────╮
+# │ p │ txt │
+# ╰───┴─────╯
 
 SPCD_TXT_LOCALE_ENGLISH="en_US"
 SPCD_TXT_LOCALE_FRENCH="fr_FR"
@@ -377,13 +397,13 @@ spcd_txt_get() {
     esac
 }
 
-# ╭──────╮
-# │ step │
-# ╰──────╯
+# ╭──────────╮
+# │ s = step │
+# ╰──────────╯
 
-# ╭──────┬───────────╮
-# │ step │ constants │
-# ╰──────┴───────────╯
+# ╭───┬───────────╮
+# │ s │ constants │
+# ╰───┴───────────╯
 
 SPCD_OS_ALMA="alma"
 SPCD_OS_ALPINE="alpine"
@@ -400,9 +420,9 @@ SPCD_PM_DNF="dnf"
 SPCD_PM_PACMAN="pacman"
 SPCD_PM_ZYPPER="zypper"
 
-# ╭──────┬─────────────╮
-# │ step │ environment │
-# ╰──────┴─────────────╯
+# ╭───┬─────────────╮
+# │ s │ environment │
+# ╰───┴─────────────╯
 
 spcd_step__environment_print() {
     spcd_ca "list"
@@ -770,20 +790,9 @@ spcd_step__environment_list_workspace() {
     spcd_os_ls "$(realpath .)"
 }
 
-# ╭──────┬───────────╮
-# │ step │ functions │
-# ╰──────┴───────────╯
-
-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 ;;
-    *) ;;
-    esac
-}
+# ╭──────────────╮
+# │ f = function │
+# ╰──────────────╯
 
 spcd_git_clone() {
     if [ -n "${1}" ]; then
@@ -806,29 +815,6 @@ spcd_git_url() {
     fi
 }
 
-spcd_https_path() {
-    case "${SPCD_PM}" in
-    "${SPCD_PM_APK}") echo "/etc/apk/repositories.d/https" ;;
-    "${SPCD_PM_APT}") echo "/etc/apt/apt.conf.d/https" ;;
-    "${SPCD_PM_DNF}") echo "/etc/dnf/dnf.conf.d/https.conf" ;;
-    "${SPCD_PM_PACMAN}") echo "/etc/pacman.d/https.conf" ;;
-    "${SPCD_PM_ZYPPER}") ;;
-    *) ;;
-    esac
-}
-
-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 "${1}" ;;
-    *) ;;
-    esac
-    spcd_clean_cache
-}
-
 spcd_python_ln() {
     local command="${1}"
     if [ -n "${command}" ]; then
@@ -850,17 +836,6 @@ spcd_python_pip() {
     fi
 }
 
-spcd_query_package() {
-    case "${SPCD_PM}" in
-    "${SPCD_PM_APK}") apk info "${1}" ;;
-    "${SPCD_PM_APT}") dpkg-query --show "${1}" ;;
-    "${SPCD_PM_DNF}") rpm --query "${1}" ;;
-    "${SPCD_PM_PACMAN}") pacman --query "${1}" ;;
-    "${SPCD_PM_ZYPPER}") rpm --query "${1}" ;;
-    *) ;;
-    esac
-}
-
 spcd_txt_locale() {
     local action="${1}"
     local chosen="${2}"
@@ -915,6 +890,37 @@ spcd_txt_locale() {
         spcd_split
         spcd_txt_locale "list"
         ;;
+    "show")
+        local regex
+        for name in "${@}"; do
+            unset regex
+            case "${name}" in
+            # LC_CTYPE
+            "LC_NUMERIC") regex="^\(decimal\|thousands\|grouping\)" ;;
+            "LC_TIME") regex="^\(day\|mon\)" ;;
+            # LC_COLLATE
+            "LC_MONETARY")
+                case "${SPCD_OS_ID}" in
+                "${SPCD_OS_ALPINE}") ;;
+                *) regex="^\(int_curr\|currency\|mon_\)" ;;
+                esac
+                ;;
+            "LC_MESSAGES") regex="^\(yes\|no\)" ;;
+            "LC_PAPER") regex="^\(height\|width\)" ;;
+            "LC_NAME") regex="^name_m" ;;
+            "LC_ADDRESS") regex="^\(country\|lang\)_name" ;;
+            "LC_TELEPHONE") regex="^int_" ;;
+            "LC_MEASUREMENT") regex="^measurement=" ;;
+            "LC_IDENTIFICATION") regex="^\(language\|territory\|title\)" ;;
+            *) ;;
+            esac
+            spcd_split
+            spcd_os_printenv "${name}"
+            if [ -n "${regex}" ]; then
+                locale --keyword-name "${name}" | grep "${regex}"
+            fi
+        done
+        ;;
     *) ;;
     esac
 }
@@ -932,7 +938,7 @@ spcd_txt_locales() {
         spcd_split
         case "${SPCD_PM}" in
         "${SPCD_PM_APK}")
-            spcd_install_package "musl-locales"
+            spcd_f_pm_install "musl-locales"
             export MUSL_LOCPATH="/usr/share/i18n/locales/musl"
             ;;
         "${SPCD_PM_APT}")
@@ -943,17 +949,17 @@ ${name}.${_SPCD_TXT_CHARSET} ${_SPCD_TXT_CHARSET}
 "
             done
             spcd_os_write "/etc/locale.gen" "${text}"
-            spcd_install_package "locales"
+            spcd_f_pm_install "locales"
             ;;
         "${SPCD_PM_DNF}")
             local language
             for name in "${@}"; do
                 language="$(echo "${name}" | cut -d _ -f 1)"
-                spcd_install_package "glibc-langpack-${language}"
+                spcd_f_pm_install "glibc-langpack-${language}"
             done
             ;;
-        "${SPCD_PM_PACMAN}") spcd_install_package "glibc-locales" ;;
-        "${SPCD_PM_ZYPPER}") spcd_install_package "glibc-locale" ;;
+        "${SPCD_PM_PACMAN}") spcd_f_pm_install "glibc-locales" ;;
+        "${SPCD_PM_ZYPPER}") spcd_f_pm_install "glibc-locale" ;;
         *) ;;
         esac
         spcd_split
@@ -975,7 +981,7 @@ ${name}.${_SPCD_TXT_CHARSET} ${_SPCD_TXT_CHARSET}
         done
         ;;
     "list")
-        if ! locale --all-locales; then
+        if ! spcd_run locale --all-locales; then
             echo "No locales yet!"
         fi
         ;;
@@ -983,18 +989,133 @@ ${name}.${_SPCD_TXT_CHARSET} ${_SPCD_TXT_CHARSET}
     esac
 }
 
-# ╭──────┬─────╮
-# │ step │ dns │
-# ╰──────┴─────╯
+# ╭───┬────╮
+# │ f │ pm │
+# ╰───┴────╯
+
+spcd_f_pm_clean() {
+    case "${SPCD_PM}" in
+    "${SPCD_PM_APK}") spcd_run apk cache purge ;;
+    "${SPCD_PM_APT}") spcd_run apt-get clean ;;
+    "${SPCD_PM_DNF}") spcd_run dnf clean all ;;
+    "${SPCD_PM_PACMAN}") spcd_run pacman --sync --clean --noconfirm ;;
+    "${SPCD_PM_ZYPPER}") spcd_run zypper clean ;;
+    *) ;;
+    esac
+}
+
+spcd_f_pm_install() {
+    case "${SPCD_PM}" in
+    "${SPCD_PM_APK}") spcd_run apk add "${1}" ;;
+    "${SPCD_PM_APT}") spcd_run apt-get install --assume-yes "${1}" ;;
+    "${SPCD_PM_DNF}") spcd_run dnf install --assumeyes "${1}" ;;
+    "${SPCD_PM_PACMAN}") spcd_run pacman --sync --noconfirm "${1}" ;;
+    "${SPCD_PM_ZYPPER}") spcd_run zypper --non-interactive install "${1}" ;;
+    *) ;;
+    esac
+    spcd_f_pm_clean
+}
+
+spcd_f_pm_query() {
+    case "${SPCD_PM}" in
+    "${SPCD_PM_APK}") apk info "${1}" ;;
+    "${SPCD_PM_APT}") dpkg-query --show "${1}" ;;
+    "${SPCD_PM_DNF}") rpm --query "${1}" ;;
+    "${SPCD_PM_PACMAN}") pacman --query "${1}" ;;
+    "${SPCD_PM_ZYPPER}") rpm --query "${1}" ;;
+    *) ;;
+    esac
+}
+
+spcd_f_pm_update() {
+    spcd_step "Update"
+    case "${SPCD_PM}" in
+    "${SPCD_PM_APK}") spcd_run apk update ;;
+    "${SPCD_PM_APT}") spcd_run apt-get update ;;
+    "${SPCD_PM_DNF}") spcd_run dnf makecache ;;
+    "${SPCD_PM_PACMAN}") spcd_run pacman --sync --refresh ;;
+    "${SPCD_PM_ZYPPER}") spcd_run zypper refresh ;;
+    *) ;;
+    esac
+}
+
+spcd_f_pm_upgrade() {
+    spcd_step "Upgrade"
+    case "${SPCD_PM}" in
+    "${SPCD_PM_APK}") spcd_run apk upgrade ;;
+    "${SPCD_PM_APT}") spcd_run apt-get upgrade --assume-yes ;;
+    "${SPCD_PM_DNF}") spcd_run dnf upgrade --assumeyes ;;
+    "${SPCD_PM_PACMAN}") spcd_run pacman --sync --sysupgrade --noconfirm ;;
+    "${SPCD_PM_ZYPPER}") spcd_run zypper --non-interactive update ;;
+    *) ;;
+    esac
+}
+
+# ╭───┬────┬───────╮
+# │ f │ pm │ https │
+# ╰───┴────┴───────╯
+
+spcd_f_pm_https_path() {
+    case "${SPCD_PM}" in
+    "${SPCD_PM_APK}") echo "/etc/apk/repositories.d/https" ;;
+    "${SPCD_PM_APT}") echo "/etc/apt/apt.conf.d/https" ;;
+    "${SPCD_PM_DNF}") echo "/etc/dnf/dnf.conf.d/https.conf" ;;
+    "${SPCD_PM_PACMAN}") echo "/etc/pacman.d/https.conf" ;;
+    "${SPCD_PM_ZYPPER}") ;;
+    *) ;;
+    esac
+}
+
+spcd_f_pm_https_trust() {
+    spcd_step "Trust"
+    local path text
+    if [ -n "${SPCD_CA_1}" ] || [ "${SPCD_PM}" = "${SPCD_PM_APT}" ]; then
+        path="$(spcd_f_pm_https_path)"
+        if [ -n "${path}" ]; then
+            spcd_os_mkdir "$(dirname "${path}")"
+            case "${SPCD_PM}" in
+            "${SPCD_PM_APK}") text="\
+--no-verify
+" ;;
+            "${SPCD_PM_APT}") text="\
+Acquire::https::Verify-Peer False;
+" ;;
+            "${SPCD_PM_DNF}") text="\
+sslverify=False
+" ;;
+            "${SPCD_PM_PACMAN}") text="\
+SSLVerify = No
+" ;;
+            "${SPCD_PM_ZYPPER}") ;;
+            *) ;;
+            esac
+            [ -n "${text}" ] &&
+                spcd_os_write "${path}" "${text}"
+        fi
+    fi
+}
+
+spcd_f_pm_https_verify() {
+    spcd_step "Verify"
+    local path
+    path="$(spcd_f_pm_https_path)"
+    if [ -n "${path}" ]; then
+        spcd_os_rm "${path}"
+    fi
+}
+
+# ╭───┬─────╮
+# │ s │ dns │
+# ╰───┴─────╯
 
 spcd_step__dns() {
     spcd_step "DNS"
     spcd_dns "write"
 }
 
-# ╭──────┬──────────╮
-# │ step │ packages │
-# ╰──────┴──────────╯
+# ╭───┬──────────╮
+# │ s │ packages │
+# ╰───┴──────────╯
 
 spcd_step__packages_set_repositories() {
     spcd_step "Set repositories"
@@ -1167,60 +1288,20 @@ Dir::Etc::SourceParts \"\";
     esac
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ARCH}")
-        pacman-key --init
+        spcd_run pacman-key --init
         ;;
     "${SPCD_OS_DEBIAN}" | "${SPCD_OS_UBUNTU}")
         export DEBIAN_FRONTEND="noninteractive"
+        spcd_os_printenv DEBIAN_FRONTEND
         ;;
     *) ;;
     esac
 }
 
-spcd_step__packages_trust_https() {
-    spcd_step "Trust HTTPS"
-    local path text
-    if [ -n "${SPCD_CA_1}" ] || [ "${SPCD_PM}" = "${SPCD_PM_APT}" ]; then
-        path="$(spcd_https_path)"
-        if [ -n "${path}" ]; then
-            spcd_os_mkdir "$(dirname "${path}")"
-            case "${SPCD_PM}" in
-            "${SPCD_PM_APK}") text="\
---no-verify
-" ;;
-            "${SPCD_PM_APT}") text="\
-Acquire::https::Verify-Peer False;
-" ;;
-            "${SPCD_PM_DNF}") text="\
-sslverify=False
-" ;;
-            "${SPCD_PM_PACMAN}") text="\
-SSLVerify = No
-" ;;
-            "${SPCD_PM_ZYPPER}") ;;
-            *) ;;
-            esac
-            [ -n "${text}" ] &&
-                spcd_os_write "${path}" "${text}"
-        fi
-    fi
-}
-
-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 ;;
-    *) ;;
-    esac
-}
-
 spcd_step__packages_install_tools() {
     spcd_step "Install tools"
     case "${SPCD_PM}" in
-    "${SPCD_PM_APT}") spcd_install_package "apt-utils" ;;
+    "${SPCD_PM_APT}") spcd_f_pm_install "apt-utils" ;;
     *) ;;
     esac
 }
@@ -1231,51 +1312,18 @@ spcd_step__packages_install_locales() {
     spcd_txt_locales "install"
     spcd_step "Set"
     spcd_txt_locale "set" "${SPCD_TXT_LOCALE}"
-    spcd_step "Test"
-    # CTYPE
-    # NUMERIC
-    spcd_split
-    locale --keyword-name LC_NUMERIC | grep "^\(decimal\|thousands\|grouping\)"
-    # TIME
-    spcd_split
-    locale --keyword-name LC_TIME | grep "^\(day\|mon\)"
-    # COLLATE
-    # MONETARY
-    spcd_split
-    locale --keyword-name LC_MONETARY | grep "^\(int_curr\|currency\|mon_\)"
-    # MESSAGES
-    spcd_split
-    locale --keyword-name LC_MESSAGES | grep "^\(yes\|no\)"
-    #
-    # PAPER
-    spcd_split
-    locale --keyword-name LC_PAPER | grep "^\(height\|width\)"
-    # NAME
-    spcd_split
-    locale --keyword-name LC_NAME | grep "^name_m"
-    # ADDRESS
-    spcd_split
-    locale --keyword-name LC_ADDRESS | grep "^\(country\|lang\)_name"
-    # TELEPHONE
-    spcd_split
-    locale --keyword-name LC_TELEPHONE | grep "^int_"
-    # MEASUREMENT
-    spcd_split
-    locale --keyword-name LC_MEASUREMENT | grep "^measurement="
-    # IDENTIFICATION
-    spcd_split
-    locale --keyword-name LC_IDENTIFICATION |
-        grep "^\(language\|territory\|title\)"
+    spcd_step "Show"
+    spcd_txt_locale "show"
     spcd_step_out
 }
 
-# ╭──────┬────╮
-# │ step │ ca │
-# ╰──────┴────╯
+# ╭───┬────╮
+# │ s │ ca │
+# ╰───┴────╯
 
 spcd_step__ca_install_package() {
     spcd_step "Install package"
-    spcd_install_package "ca-certificates"
+    spcd_f_pm_install "ca-certificates"
 }
 
 spcd_step__ca_write_certificates() {
@@ -1307,60 +1355,39 @@ spcd_step__ca_update_certificates() {
         "${SPCD_OS_ALMA}" | \
         "${SPCD_OS_FEDORA}" | \
         "${SPCD_OS_ROCKY}")
-        update-ca-trust
+        spcd_run update-ca-trust
         ;;
     "${SPCD_OS_ALPINE}" | \
         "${SPCD_OS_DEBIAN}" | \
         "${SPCD_OS_OPENSUSE}" | \
         "${SPCD_OS_UBUNTU}")
-        update-ca-certificates
+        spcd_run update-ca-certificates
         ;;
     *) ;;
     esac
 }
 
-# ╭──────┬──────────╮
-# │ step │ packages │
-# ╰──────┴──────────╯
-
-spcd_step__packages_verify_https() {
-    spcd_step "Verify HTTPS"
-    local path
-    path="$(spcd_https_path)"
-    if [ -n "${path}" ]; then
-        spcd_os_rm "${path}"
-    fi
-}
-
-spcd_step__packages_upgrade_system() {
-    spcd_step "Upgrade system"
-    case "${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 ;;
-    *) ;;
-    esac
-}
+# ╭───┬──────────╮
+# │ s │ packages │
+# ╰───┴──────────╯
 
 spcd_step__packages_install_dos2unix() {
     spcd_step "Install dos2unix"
-    spcd_install_package "dos2unix"
+    spcd_f_pm_install "dos2unix"
 }
 
 spcd_step__packages_install_git() {
     spcd_step "Install Git"
-    spcd_install_package "git"
+    spcd_f_pm_install "git"
 }
 
-# ╭──────┬────────╮
-# │ step │ python │
-# ╰──────┴────────╯
+# ╭───┬────────╮
+# │ s │ python │
+# ╰───┴────────╯
 
 spcd_step__python_install() {
     spcd_step "Install package"
-    spcd_install_package "${SPCD_PYTHON_PACKAGE}"
+    spcd_f_pm_install "${SPCD_PYTHON_PACKAGE}"
     spcd_step "Link alias to command"
     spcd_python_ln "${SPCD_PYTHON_COMMAND}"
     # venv
@@ -1368,7 +1395,7 @@ spcd_step__python_install() {
     spcd_step "Install package"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_DEBIAN}" | "${SPCD_OS_UBUNTU}")
-        spcd_install_package "python3-venv"
+        spcd_f_pm_install "python3-venv"
         ;;
     *) ;;
     esac
@@ -1418,7 +1445,7 @@ spcd_step__install_packages() {
     spcd_step "EPEL"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}" | "${SPCD_OS_ROCKY}")
-        spcd_install_package "epel-release"
+        spcd_f_pm_install "epel-release"
         case "${SPCD_OS_VERSION}" in
         "9")
             set -- \
@@ -1450,32 +1477,32 @@ spcd_step__install_packages() {
     esac
     # graphviz
     spcd_step "GraphViz"
-    spcd_install_package "graphviz"
+    spcd_f_pm_install "graphviz"
     # openssh
     spcd_step "OpenSSH"
     case "${SPCD_PM}" in
     "${SPCD_PM_APK}" | "${SPCD_PM_APT}")
-        spcd_install_package "openssh-client"
+        spcd_f_pm_install "openssh-client"
         ;;
     "${SPCD_PM_DNF}" | "${SPCD_PM_ZYPPER}")
-        spcd_install_package "openssh-clients"
+        spcd_f_pm_install "openssh-clients"
         ;;
-    "${SPCD_PM_PACMAN}") spcd_install_package "openssh" ;;
+    "${SPCD_PM_PACMAN}") spcd_f_pm_install "openssh" ;;
     *) ;;
     esac
     # plantuml
     spcd_step "PlantUML"
-    spcd_install_package "plantuml"
+    spcd_f_pm_install "plantuml"
     # rsync
     spcd_step "Rsync"
-    spcd_install_package "rsync"
+    spcd_f_pm_install "rsync"
     # shell check
     spcd_step "ShellCheck"
     case "${SPCD_PM}" in
     "${SPCD_PM_DNF}" | "${SPCD_PM_ZYPPER}")
-        spcd_install_package "ShellCheck"
+        spcd_f_pm_install "ShellCheck"
         ;;
-    *) spcd_install_package "shellcheck" ;;
+    *) spcd_f_pm_install "shellcheck" ;;
     esac
     # shfmt
     spcd_step "ShellFormat"
@@ -1484,10 +1511,10 @@ spcd_step__install_packages() {
     "${SPCD_OS_DEBIAN}")
         case "${SPCD_OS_VERSION}" in
         "bullseye") ;;
-        *) spcd_install_package "shfmt" ;;
+        *) spcd_f_pm_install "shfmt" ;;
         esac
         ;;
-    *) spcd_install_package "shfmt" ;;
+    *) spcd_f_pm_install "shfmt" ;;
     esac
     spcd_step_out
 }
@@ -1548,8 +1575,8 @@ spcd_main() {
     spcd_step_in "Packages"
     spcd_step__packages_set_repositories
     spcd_step__packages_set_configuration
-    spcd_step__packages_trust_https
-    spcd_step__packages_update_catalog
+    spcd_f_pm_https_trust
+    spcd_f_pm_update
     spcd_step__packages_install_tools
     spcd_step__packages_install_locales
     spcd_step_out
@@ -1561,9 +1588,9 @@ spcd_main() {
     spcd_step_out
     # packages
     spcd_step_in "Packages"
-    spcd_step__packages_verify_https
-    spcd_step__packages_update_catalog
-    spcd_step__packages_upgrade_system
+    spcd_f_pm_https_verify
+    spcd_f_pm_update
+    spcd_f_pm_upgrade
     spcd_step__packages_install_dos2unix
     spcd_step__packages_install_git
     spcd_step_out