diff --git a/modules/08-install-zsh-libraries.sh b/modules/08-install-zsh-libraries.sh
new file mode 100755
index 0000000..516c94a
--- /dev/null
+++ b/modules/08-install-zsh-libraries.sh
@@ -0,0 +1,64 @@
+#!/usr/bin/env zsh
+# vi: ft=zsh
+
+function addLibToStartupFile() {
+}
+
+function installZshlib() {
+  local zshlibPath=${libDir}/astzweig_zshlib
+  zcompile -z -U ${zshlibPath} $(find "${ASTZWEIG_ZSHLIB}" -type f -perm +u=x -maxdepth 1)
+  libs+=(${zshlibPath}.zwc)
+}
+
+function modifyGlobalFpath() {
+  local startupFile=/etc/zshenv
+  cat ${startupFile} | grep "${(q)libs}" >&! /dev/null && return
+  print -- "fpath+=(${(q)libs})" >> ${startupFile}
+  chown root:wheel ${startupFile}
+  chmod u=rw,go=r ${startupFile}
+}
+
+function configure_system() {
+  local libDir=/usr/local/share/zsh/site-functions
+  local libs=()
+  ensurePathOrLogError ${libDir} 'Could not install zsh libraries.' || return 10
+  lop -- -d "ASTZWEIG_ZSHLIB is ${ASTZWEIG_ZSHLIB}"
+  indicateActivity installZshlib 'Install zshlib'
+  indicateActivity modifyGlobalFpath 'Modify global fpath'
+}
+
+function getExecPrerequisites() {
+  cmds=(
+    [cat]=''
+    [grep]=''
+    [chown]=''
+    [chmod]=''
+    [install]=''
+  )
+}
+
+function getUsage() {
+  read -r -d '' text <<- USAGE
+	Usage:
+	  $cmdName show-questions [<modkey> <modans>]...
+	  $cmdName [-v] [-d FILE]
+	
+	Install convenient zsh libraries system-wide for use in zsh scripts.
+	
+	Options:
+	  -d FILE, --logfile FILE  Print log message to logfile instead of stdout.
+	  -v, --verbose            Be more verbose.
+	----
+	$cmdName 0.1.0
+	Copyright (C) 2022 Rezart Qelibari, Astzweig GmbH & Co. KG
+	License EUPL-1.2. There is NO WARRANTY, to the extent permitted by law.
+	USAGE
+  print -- ${text}
+}
+
+if [[ "${ZSH_EVAL_CONTEXT}" == toplevel ]]; then
+  _DIR="${0:A:h}"
+  test -f "${ASTZWEIG_MACOS_SYSTEM_LIB}" || { echo 'This module requires macos-system library. Please run again with macos-system library provieded as a path in ASTZWEIG_MACOS_SYSTEM_LIB env variable.'; return 10 }
+  source "${ASTZWEIG_MACOS_SYSTEM_LIB}"
+  module_main $0 "$@"
+fi