Node-RED listens by default on port 1880 after installation.
You will have to connect all the required snap interfaces for hardware
your flows will use.
The snap does come with the palette editor enabled and ships the gcc
toolchain as well as a bunch of development libraries so that npm can
dynamically compile nodes where required when you add them via the
To see all connected and available connections please run
sudo snap connections node-red-rpi
To connect i.e. a GPIO interface (GPIO 14 here) you do