Once a class was full, you could still get in if someone who was selected for the classes changed their mind, which (at an unpredictable time) would result in a seat becoming available in that class until another student noticed the availability and signed up.

So I wrote a simple PHP script that loaded the page every 60 seconds checking, and the script would send me a text message if any of the classes I wanted suddenly had an opening. I would then run to a computer and try to sign up.

These are the kind of bespoke, single-purpose things that I presume AI coding could help the average person with.

“Send me a push notification when the text on this webpage says the class isn’t full, and check every 60 seconds”