the reason why there are no good manuals means that the use cases do not apply specifically to SI. What you are asking for is weakly related to the framework. more related to the practice of PHP development. Try to study patterns and many issues are solved. Personally, I found all the main examples in the documentation and read only very specific tasks in the source code.
and a small question to you, is there anyone who can adequately translate from another language if I tell you a little?
