How is the YAGNI principle implemented in software development practice?

The YAGNI principle (You Aren't Gonna Need It) means that you should not implement functionality in advance if it is not needed at the current moment. In development practice, this helps avoid unnecessary complexity and time spent on code that may never be used.

For example, when developing an iOS application, it is not advisable to immediately add support for many settings or features if they are not requested by the customer or are not critical for the MVP. Instead, it is better to focus on the main tasks and expand functionality as real needs arise.

This improves code quality, makes maintenance easier, and speeds up releases.