rc.local for systemd-based distro

better-rc-local.service

# Put this file in /etc/systemd/system
[Unit]
Description=A better rc.local-service     

[Service]
Type=idle
ExecStart=/etc/rc.local.better

[Install]
WantedBy=network.target    
After=multi-user.target

rc.local.better

#!/bin/sh -e
#
# /etc/rc.local.better
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

exit 0