Cloud system help?

[pajamaclaws21]

With the ability of MQTT brokers to "retain" messages, you could use this library based on @cymplecy's forum post. As always:

@cymplecy

USUAL WARNING - DO NOT USE MQTT TO SET UP A CHAT SERVICE!!!
Also, the free public brokers have no guarantee of service and may delete any messages and topics at anytime. They may also, have topic storage and rate limits on them and they may IP ban you if you exceed these