I'm thinking of forking one to run it through some LLMs (e.g. shopping list), but I haven't found any I'm happy with. I might just open source one myself if that's the case.
It's also a common interview question before the standard became movie listings. I believe the bootcamp and university standard is food delivery apps now.
There's plenty of code out there, but the student ones are underengineered and the interview ones tend to be overengineered.