We used it back in the day as well for some non-essential stuff. This post caused me to dig into where hubot stands. It looks like gijoeyguerra upgraded the code to ESM: https://github.com/hubotio/hubot
and also wrote/upgraded the adapters for Slack, Teams, etc: https://github.com/hubot-friends
It would be cool to see this get legs again. If nothing else, a maintained cross-platform, hackable bot framework is useful! This caused me to do some more searching, and I stumbled across: https://joeyguerra.com/blog/2023/resuscitating-hubot.html