Node JS
http://blog.denwilliams.net/2016/05/02/node-js-on-raspbian/
PM2
Install and set to auto-start: http://blog.denwilliams.net/2017/04/22/pm2-raspbian-autostart/
Redis
http://mjavery.blogspot.com.au/2016/05/setting-up-redis-on-raspberry-pi.html
Mosquitto
sudo apt-get install mosquitto