Keyword Notifications/Tracker

Problem

Similar to Slack (or even discord with the proper extensions), in some communities it is useful to get pinged whenever a keyword is said. For example there are certain preservation communities I'm a part of where it's useful to know discussions about new discoveries with a particular device.

Proposed solution

It'd be nice to to have a list of regex's or words that run locally whenever my client receives a message. If the regex, or word matches I get a desktop notification just as if I were manually @'d.