diff --git a/readme.md b/readme.md
index f8d9ebc..da899c0 100644
--- a/readme.md
+++ b/readme.md
@@ -282,6 +282,7 @@ Handle project workflows in a unified way:
 ### Task stack
 
 * automate versions fetching
+* gource, xvfb, xauth
 * handle openh264 repositories
 * tex
 * translate to french
diff --git a/spcd.sh b/spcd.sh
new file mode 100755
index 0000000..b0ef37c
--- /dev/null
+++ b/spcd.sh
@@ -0,0 +1,31 @@
+#! /usr/bin/env sh
+
+gource \
+--auto-skip-seconds 0.25 \
+--date-format "%Y / %m / %d  ⋅  %H : %M : %S" \
+--disable-input \
+--font-scale 2.5 \
+--frameless \
+--hide mouse,usernames \
+--highlight-dirs \
+--key \
+--multi-sampling \
+--output-framerate 60 \
+--output-ppm-stream - \
+--seconds-per-day 0.6 \
+--stop-at-end \
+--viewport "1920x1080" \
+| \
+ffmpeg \
+-codec:v ppm \
+-format image2pipe \
+-framerate 120 \
+-i - \
+-codec:v libx264 \
+-preset veryslow \
+-qp 28 \
+-movflags \
++faststart \
+-pix_fmt yuv420p \
+-y \
+spcd.mp4
diff --git a/spcd/bootstrap.sh b/spcd/bootstrap.sh
index 0268849..b6eaf31 100644
--- a/spcd/bootstrap.sh
+++ b/spcd/bootstrap.sh
@@ -836,220 +836,9 @@ spcd_python_pip() {
     fi
 }
 
-spcd_txt_locale() {
-    local action="${1}"
-    local chosen="${2}"
-    set -- \
-        "LANG" \
-        "LC_CTYPE" \
-        "LC_NUMERIC" \
-        "LC_TIME" \
-        "LC_COLLATE" \
-        "LC_MONETARY" \
-        "LC_MESSAGES"
-    case "${SPCD_OS_ID}" in
-    "${SPCD_OS_ALPINE}") ;;
-    *)
-        set -- \
-            "${@}" \
-            "LANGUAGE" \
-            "LC_PAPER" \
-            "LC_NAME" \
-            "LC_ADDRESS" \
-            "LC_TELEPHONE" \
-            "LC_MEASUREMENT" \
-            "LC_IDENTIFICATION"
-        ;;
-    esac
-    local name
-    case "${action}" in
-    "list")
-        if ! locale; then
-            for name in "${@}"; do
-                spcd_os_printenv "${name}"
-            done
-        fi
-        ;;
-    "set")
-        spcd_txt_locale "list"
-        spcd_split
-        local locale long
-        if [ -n "${chosen}" ]; then
-            locale="${chosen}"
-        else
-            locale="${_SPCD_TXT_LOCALE_DEFAULT}"
-        fi
-        long="${locale}.${_SPCD_TXT_CHARSET}"
-        for name in "${@}"; do
-            if [ "${name}" != "LANGUAGE" ]; then
-                export "${name}=${long}"
-            else
-                export "${name}=$(spcd_txt_locales language "${chosen}")"
-            fi
-        done
-        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
-}
-
-spcd_txt_locales() {
-    local action="${1}"
-    local chosen="${2}"
-    set -- \
-        "${SPCD_TXT_LOCALE_ENGLISH}" \
-        "${SPCD_TXT_LOCALE_FRENCH}"
-    local name
-    case "${action}" in
-    "install")
-        spcd_txt_locales "list"
-        spcd_split
-        case "${SPCD_PM}" in
-        "${SPCD_PM_APK}")
-            spcd_f_pm_install "musl-locales"
-            export MUSL_LOCPATH="/usr/share/i18n/locales/musl"
-            ;;
-        "${SPCD_PM_APT}")
-            local text
-            for name in "${@}"; do
-                text="${text}\
-${name}.${_SPCD_TXT_CHARSET} ${_SPCD_TXT_CHARSET}
-"
-            done
-            spcd_os_write "/etc/locale.gen" "${text}"
-            spcd_f_pm_install "locales"
-            ;;
-        "${SPCD_PM_DNF}")
-            local language
-            for name in "${@}"; do
-                language="$(echo "${name}" | cut -d _ -f 1)"
-                spcd_f_pm_install "glibc-langpack-${language}"
-            done
-            ;;
-        "${SPCD_PM_PACMAN}") spcd_f_pm_install "glibc-locales" ;;
-        "${SPCD_PM_ZYPPER}") spcd_f_pm_install "glibc-locale" ;;
-        *) ;;
-        esac
-        spcd_split
-        spcd_txt_locales "list"
-        ;;
-    "language")
-        local text
-        if [ -n "${chosen}" ]; then
-            text="${chosen}"
-        fi
-        for name in "${@}"; do
-            if [ "${name}" != "${chosen}" ]; then
-                if [ -n "${text}" ]; then
-                    text="${text}:${name}"
-                else
-                    text="${name}"
-                fi
-            fi
-        done
-        ;;
-    "list")
-        if ! spcd_run locale --all-locales; then
-            echo "No locales yet!"
-        fi
-        ;;
-    *) ;;
-    esac
-}
-
-# ╭───┬────╮
-# │ 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 = package manager │
+# ╰───┴──────────────────────╯
 
 # ╭───┬────┬───────╮
 # │ f │ pm │ https │
@@ -1104,6 +893,225 @@ spcd_f_pm_https_verify() {
     fi
 }
 
+# ╭───┬────┬─────╮
+# │ f │ pm │ pkg │
+# ╰───┴────┴─────╯
+
+spcd_f_pm_pkg_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_pkg_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 "${1}" ;;
+    *) ;;
+    esac
+    spcd_f_pm_pkg_clean
+}
+
+spcd_f_pm_pkg_query() {
+    case "${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_pkg_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_pkg_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 │ txt │
+# ╰───┴─────╯
+
+spcd_f_txt_locale() {
+    local action="${1}"
+    local chosen="${2}"
+    set -- \
+        "LANG" \
+        "LC_CTYPE" \
+        "LC_NUMERIC" \
+        "LC_TIME" \
+        "LC_COLLATE" \
+        "LC_MONETARY" \
+        "LC_MESSAGES"
+    case "${SPCD_OS_ID}" in
+    "${SPCD_OS_ALPINE}") ;;
+    *)
+        set -- \
+            "${@}" \
+            "LANGUAGE" \
+            "LC_PAPER" \
+            "LC_NAME" \
+            "LC_ADDRESS" \
+            "LC_TELEPHONE" \
+            "LC_MEASUREMENT" \
+            "LC_IDENTIFICATION"
+        ;;
+    esac
+    local name
+    case "${action}" in
+    "list")
+        if ! locale; then
+            for name in "${@}"; do
+                spcd_os_printenv "${name}"
+            done
+        fi
+        ;;
+    "set")
+        spcd_f_txt_locale "list"
+        spcd_split
+        local locale long
+        if [ -n "${chosen}" ]; then
+            locale="${chosen}"
+        else
+            locale="${_SPCD_TXT_LOCALE_DEFAULT}"
+        fi
+        long="${locale}.${_SPCD_TXT_CHARSET}"
+        for name in "${@}"; do
+            if [ "${name}" != "LANGUAGE" ]; then
+                export "${name}=${long}"
+            else
+                export "${name}=$(spcd_f_txt_locales language "${chosen}")"
+            fi
+        done
+        spcd_split
+        spcd_f_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
+}
+
+spcd_f_txt_locales() {
+    local action="${1}"
+    local chosen="${2}"
+    set -- \
+        "${SPCD_TXT_LOCALE_ENGLISH}" \
+        "${SPCD_TXT_LOCALE_FRENCH}"
+    local name
+    case "${action}" in
+    "install")
+        spcd_f_txt_locales "list"
+        spcd_split
+        case "${SPCD_PM}" in
+        "${SPCD_PM_APK}")
+            spcd_f_pm_pkg_install "musl-locales"
+            export MUSL_LOCPATH="/usr/share/i18n/locales/musl"
+            ;;
+        "${SPCD_PM_APT}")
+            local text
+            for name in "${@}"; do
+                text="${text}\
+${name}.${_SPCD_TXT_CHARSET} ${_SPCD_TXT_CHARSET}
+"
+            done
+            spcd_os_write "/etc/locale.gen" "${text}"
+            spcd_f_pm_pkg_install "locales"
+            ;;
+        "${SPCD_PM_DNF}")
+            local language
+            for name in "${@}"; do
+                language="$(echo "${name}" | cut -d _ -f 1)"
+                spcd_f_pm_pkg_install "glibc-langpack-${language}"
+            done
+            ;;
+        "${SPCD_PM_PACMAN}") spcd_f_pm_pkg_install "glibc-locales" ;;
+        "${SPCD_PM_ZYPPER}") spcd_f_pm_pkg_install "glibc-locale" ;;
+        *) ;;
+        esac
+        spcd_split
+        spcd_f_txt_locales "list"
+        ;;
+    "language")
+        local text
+        if [ -n "${chosen}" ]; then
+            text="${chosen}"
+        fi
+        for name in "${@}"; do
+            if [ "${name}" != "${chosen}" ]; then
+                if [ -n "${text}" ]; then
+                    text="${text}:${name}"
+                else
+                    text="${name}"
+                fi
+            fi
+        done
+        ;;
+    "list")
+        if ! spcd_run locale --all-locales; then
+            echo "No locales yet!"
+        fi
+        ;;
+    *) ;;
+    esac
+}
+
 # ╭───┬─────╮
 # │ s │ dns │
 # ╰───┴─────╯
@@ -1301,7 +1309,7 @@ Dir::Etc::SourceParts \"\";
 spcd_step__packages_install_tools() {
     spcd_step "Install tools"
     case "${SPCD_PM}" in
-    "${SPCD_PM_APT}") spcd_f_pm_install "apt-utils" ;;
+    "${SPCD_PM_APT}") spcd_f_pm_pkg_install "apt-utils" ;;
     *) ;;
     esac
 }
@@ -1309,11 +1317,11 @@ spcd_step__packages_install_tools() {
 spcd_step__packages_install_locales() {
     spcd_step_in "Locales"
     spcd_step "Install"
-    spcd_txt_locales "install"
+    spcd_f_txt_locales "install"
     spcd_step "Set"
-    spcd_txt_locale "set" "${SPCD_TXT_LOCALE}"
+    spcd_f_txt_locale "set" "${SPCD_TXT_LOCALE}"
     spcd_step "Show"
-    spcd_txt_locale "show"
+    spcd_f_txt_locale "show"
     spcd_step_out
 }
 
@@ -1323,7 +1331,7 @@ spcd_step__packages_install_locales() {
 
 spcd_step__ca_install_package() {
     spcd_step "Install package"
-    spcd_f_pm_install "ca-certificates"
+    spcd_f_pm_pkg_install "ca-certificates"
 }
 
 spcd_step__ca_write_certificates() {
@@ -1373,12 +1381,12 @@ spcd_step__ca_update_certificates() {
 
 spcd_step__packages_install_dos2unix() {
     spcd_step "Install dos2unix"
-    spcd_f_pm_install "dos2unix"
+    spcd_f_pm_pkg_install "dos2unix"
 }
 
 spcd_step__packages_install_git() {
     spcd_step "Install Git"
-    spcd_f_pm_install "git"
+    spcd_f_pm_pkg_install "git"
 }
 
 # ╭───┬────────╮
@@ -1387,7 +1395,7 @@ spcd_step__packages_install_git() {
 
 spcd_step__python_install() {
     spcd_step "Install package"
-    spcd_f_pm_install "${SPCD_PYTHON_PACKAGE}"
+    spcd_f_pm_pkg_install "${SPCD_PYTHON_PACKAGE}"
     spcd_step "Link alias to command"
     spcd_python_ln "${SPCD_PYTHON_COMMAND}"
     # venv
@@ -1395,7 +1403,7 @@ spcd_step__python_install() {
     spcd_step "Install package"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_DEBIAN}" | "${SPCD_OS_UBUNTU}")
-        spcd_f_pm_install "python3-venv"
+        spcd_f_pm_pkg_install "python3-venv"
         ;;
     *) ;;
     esac
@@ -1445,7 +1453,7 @@ spcd_step__install_packages() {
     spcd_step "EPEL"
     case "${SPCD_OS_ID}" in
     "${SPCD_OS_ALMA}" | "${SPCD_OS_ROCKY}")
-        spcd_f_pm_install "epel-release"
+        spcd_f_pm_pkg_install "epel-release"
         case "${SPCD_OS_VERSION}" in
         "9")
             set -- \
@@ -1477,32 +1485,32 @@ spcd_step__install_packages() {
     esac
     # graphviz
     spcd_step "GraphViz"
-    spcd_f_pm_install "graphviz"
+    spcd_f_pm_pkg_install "graphviz"
     # openssh
     spcd_step "OpenSSH"
     case "${SPCD_PM}" in
     "${SPCD_PM_APK}" | "${SPCD_PM_APT}")
-        spcd_f_pm_install "openssh-client"
+        spcd_f_pm_pkg_install "openssh-client"
         ;;
     "${SPCD_PM_DNF}" | "${SPCD_PM_ZYPPER}")
-        spcd_f_pm_install "openssh-clients"
+        spcd_f_pm_pkg_install "openssh-clients"
         ;;
-    "${SPCD_PM_PACMAN}") spcd_f_pm_install "openssh" ;;
+    "${SPCD_PM_PACMAN}") spcd_f_pm_pkg_install "openssh" ;;
     *) ;;
     esac
     # plantuml
     spcd_step "PlantUML"
-    spcd_f_pm_install "plantuml"
+    spcd_f_pm_pkg_install "plantuml"
     # rsync
     spcd_step "Rsync"
-    spcd_f_pm_install "rsync"
+    spcd_f_pm_pkg_install "rsync"
     # shell check
     spcd_step "ShellCheck"
     case "${SPCD_PM}" in
     "${SPCD_PM_DNF}" | "${SPCD_PM_ZYPPER}")
-        spcd_f_pm_install "ShellCheck"
+        spcd_f_pm_pkg_install "ShellCheck"
         ;;
-    *) spcd_f_pm_install "shellcheck" ;;
+    *) spcd_f_pm_pkg_install "shellcheck" ;;
     esac
     # shfmt
     spcd_step "ShellFormat"
@@ -1511,10 +1519,10 @@ spcd_step__install_packages() {
     "${SPCD_OS_DEBIAN}")
         case "${SPCD_OS_VERSION}" in
         "bullseye") ;;
-        *) spcd_f_pm_install "shfmt" ;;
+        *) spcd_f_pm_pkg_install "shfmt" ;;
         esac
         ;;
-    *) spcd_f_pm_install "shfmt" ;;
+    *) spcd_f_pm_pkg_install "shfmt" ;;
     esac
     spcd_step_out
 }
@@ -1576,7 +1584,7 @@ spcd_main() {
     spcd_step__packages_set_repositories
     spcd_step__packages_set_configuration
     spcd_f_pm_https_trust
-    spcd_f_pm_update
+    spcd_f_pm_pkg_update
     spcd_step__packages_install_tools
     spcd_step__packages_install_locales
     spcd_step_out
@@ -1589,8 +1597,8 @@ spcd_main() {
     # packages
     spcd_step_in "Packages"
     spcd_f_pm_https_verify
-    spcd_f_pm_update
-    spcd_f_pm_upgrade
+    spcd_f_pm_pkg_update
+    spcd_f_pm_pkg_upgrade
     spcd_step__packages_install_dos2unix
     spcd_step__packages_install_git
     spcd_step_out