Custom event tracking with ActiveSupport::Notifications and Audited

Link: https://blog.joshsoftware.com/2020/03/21/custom-event-tracking-with-activesupportnotifications-and-audited/

When it comes to logging or tracking changes in Ruby on Rails models, We typically tend to use either paper_trail or audited gems as these are most popular and widely used gems in Ruby on Rails applications for tracking changes in Rails models, but what if you want to track the custom events on controller level(like following) in addition to model changes?