Based on Raspbian Jessie Lite, hence without a xserver, because of the used Raspberry Pi A+ is’nt so performant as a new Raspberry Pi, but it also consumes considerably less power in continuous operation.
A good starting point is http://nodered.org/docs/hardware/raspberrypi.
- sudo apt-get update
- sudo apt-get install npm
- sudo npm install -g firstname.lastname@example.org
- hash -r