DRY – Don’t Repeat Yourself

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system. Try to maintain the behavior of a functionality of the system in a single piece of code, it should not have duplicated code or design item.

▪ KISS – Keep It Simple, Stupid

Make your code or system simple. You should avoid unnecessary complexity. A simple code it’s easier to maintain and easier to understand.

▪ YAGNI – You Ain’t Gonna Need It

This methodology said “Do the Simplest Thing That Could Possibly Work”. This principle says that you should not create features that it’s not really necessary.

https://www.boldare.com/blog/kiss-yagni-dry-principles/#:~:text=Keep%20it%20simple%2C%20stupid%20(KISS,build%20better%20products%20every%20day.