post_install() {
    _systemd_service_usage
}

post_upgrade() {
    _systemd_service_usage
}

# print an usage on how to use the agent started by systemd
_systemd_service_usage() {
    echo "In order to use moolticute_ssh-agent one had to export the environment variable"      \
         'SSH_AUTH_SOCK="${XDG_RUNTIME_DIR}/moolticute-ssh-agent.socket"'
}