Yes, that's how I understood it to work. But the readme in that Github repo shows a crontab entry to run it every hour, and the script checks if the user is currently logged in.

If it actually worked like this, you would have to get up from your desk exactly on the hour, which certainly seems more annoying than useful!

The whole repo is supposed to be a joke of course, just a badly thought out one that I find confusing rather than funny.