[am I missing something or is there no home for discussion related to the Indigo node-red contrib: https://flows.nodered.org/node/node-red-contrib-indigo?] Not sure if they are actively maintained?
I've been experimenting with using these nodes (as an alternative/complement to MQTT). They work very well testing on the local Indigo machine but the Indigo connection node is hanging node-red when used on a remote machine that in all other respects runs node-red perfectly (an RPi running ChirpstackOS).