This work is based on https://github.com/jeremy21212121/slack-doorbot-esp8266 by Jeremy Poole which in turn is based on https://github.com/urish/arduino-slack-bot by Uri Shaked.
It matches terms in a slack channel and wobbles if it finds one.
You'll need to clone https://github.com/jeremy21212121/slack-doorbot-esp8266/ and then replace the .ino file with the one below, and add a secrets file.