_zimfw_build_login_init() {
  # Array with unique dirs. ${ZIM_HOME} or any subdirectory should only occur once.
  local -Ur zscriptdirs=(${ZIM_HOME} ${${_zdirs##${ZIM_HOME}/*}:A})
  local -r zscriptglob=("${^zscriptdirs[@]}/(^*test*/)#*.zsh(|-theme)(N-.)") ztarget=${ZIM_HOME}/login_init.zsh
  # Force update of login_init.zsh if it's older than .zimrc
  if [[ ${ztarget} -ot <%= home %>/.zimrc ]]; then
    command mv -f ${ztarget}{,.old} || return 1
  fi
  _zimfw_mv =(
    print -Rn "<%= render_escaped("src/templates/login_init.zsh.erb") %>"
  ) ${ztarget}
}